seo vs. ppc
TRANSCRIPT
Running head: EFFECTS OF SEARCH ENGINE MARKETING 1
Search Engine Optimization vs. Pay-Per-Click Search Engine Optimization vs. Pay-Per-Click
By
Aliah M. Thomas
Texas A & M University, Commerce
SEO vs. PPC: Effects of Search Engine Marketing 2
The Internet has made it possible to take the contents and services of businesses in all
industries and sizes alike, to every corner of the world, enabling them the ability to achieve an
unprecedented amount of potential customers (Espadas, 2008, p.1727). According to
Internetworldstats.com, approximately 1.96 billion people around the world now have access to
the Internet. With 28.7% of the world’s population now going online for their information,
search engines have inevitably become increasingly popular. A study conducted by
SearchEnginewatch.com reveals that there were more than 131 billion searches conducted world-
wide in 2009. This number represents more than 4 billion searches per day, 175 million per hour,
and 29 million per minute. However, although a search engine may return millions of results for
each user query, users only looks at a select few. In fact, 73% of search engine user’s never look
beyond the first page of returned results (Jansen & Sprink, 2006).
In today’s technology-savvy world, consumers are spending far less time and attention on
traditional forms of media. Instead these consumers are now “Googling” online (Kumar, 2007,
p.3). Google, the undoubted leader in global search market is estimated to conduct more than 91
millions searches each day. This constitutes for almost 60% of all Web search that’s conducted
online. Given that a top position could potentially lead to tens-of-thousands of new prospects, for
most online businesses today, Google is the preferred search engine of choice.
Given its immense growth and popularity within recent years, the Internet has become an
increasing competitive market. There are easily hundreds or thousands of relevant pages
available on the Web (Avrachenkov & Litvak, 2006, p.319) that compete everyday against others
with the same or similar content, information, and even quality design (Espadas, 2008, p.1727).
SEO vs. PPC: Effects of Search Engine Marketing 3
If businesses online want to be able to effectively compete in the online market, they need to
found before their competitors.
“Search Engine Marketing or SEM is essentially the utilization of search engines as a
marketing tool for a business.” (Mamaghani, 2009, p.131) Because Search Engine Marketing
allows even small companies with limited capital to compete for a strong position in the online
marketplace SEM has become one the most popular forms of online marketing today. Search
Engine Marketing accounted for at $14.7 billion dollars in revenue generated in 2009. According
to SEMPO 2008, this expenditure is forecasted to nearly double by 2013.
Effective SEM strategies, such as Search Engine Optimization (SEO) and Pay-Per-Click
(PPC) essentially enable business websites to “be found” easier by users searching for related
products and services. Both Internet marketing strategies are designed to generate web traffic by
increasing a website’s visibility in the search engine results pages or SERPs. Google’s SERP is
displayed in two categories: Organic or natural search results, associated with SEO, appear on
the top, left hand side of the user’s screen and are generated by search engine’s proprietary
algorithms. Paid or sponsored results, associated with PPC, appear on the top, right hand side of
the user’s screen and are listed because content providers or advertisers have paid the search
engine companies to place bids on one or more terms in the search query (Ma, Pant, & Sheng,
2010, p.30).
With the increased importance of online advertising, many companies are now shifting
their advertising budgets from the traditional print (newspaper and magazine), direct mail and
television ads, to online marketing campaigns such as Search Engine Optimization and Pay-Per-
SEO vs. PPC: Effects of Search Engine Marketing 4
Click (Mamaghani, 2009, p.132). However, much skepticism still exists in regards to the impact
these SEM strategies actually have on the bottom line (Mamaghani, 2009, p.136).
It has been estimated that 82% of all online marketing activities go towards paid
placement (PPC) campaigns. The distribution of dollars suggests that Pay-Per-Click is perceived
as the most effective means of achieving increased visibility in the search-results pages (Sen,
2005, p.10). However, research reveals that users are far less likely to select areas in the
sponsored listings. Given the discrepancy, it’s not difficult to see why so many online businesses
remain confused as to which online marketing strategy is most effective. These companies often
wonder, “Should we use Search Engine Optimization as our online marketing strategy?”
The following statements are hypothesized:
1. Website profitability is dependent, in part, on the amount of traffic it
generates. Therefore, it is assumed that as traffic increases, revenue should
increase as well.
2. Search engines are a major traffic driver for websites.
3. Search engine traffic is increased through the use of SEO and PPC.
The purpose of this applied business research paper is to determine the effects of Search
Engine Optimization in comparison to Pay-Per-Click. Essentially, both Internet marketing
strategies have become increasingly popular as highly effective methods for improving search
engine rankings and generating new web traffic. However, this paper will provide insight as to
which SEM strategy is most effective, in terms of its ability to generate web traffic. The
conclusions derived will be based on the accumulation of data collected and analyzed from
SEO vs. PPC: Effects of Search Engine Marketing 5
[thirty] recently published, peer-reviewed journal articles. In efforts to ensure consistency
amongst the comparisons within the literature, Google will be the only search engine of focus.
Google’s SERP has 5 sections:
1. Top Sponsored Links-- The top ranking “sponsored” website
2. Side Sponsored Link-- The remaining “sponsored” website listings
3. Optional Information Feeds-- i.e. News and Froogle listings
4. Above the Fold Organic-- Viewable, top ranking organic search results
5. Below the Fold Organic-- Organic search results, viewable after scrolling
It’s critical to understand how Google’s SERP is displayed and viewed by Internet users
that search the web. It is important to note that Top Sponsored Links very seldom show in the
area referenced. This is also true for the Optional Information Feeds. However, in efforts to
ensure objectivity, all potential placement possibilities have been displayed. It is also important
SEO vs. PPC: Effects of Search Engine Marketing 6
to note that ten organic results are always displayed by Google on the first page of the search.
The number of sponsored results however, will vary with each search query.
DiscussionDiscussion
““Search Engine Optimization (SEO), is a set of techniques that are aimed at improving
the “natural or organic” ranking of a website in search engine listings, thereby making it more
likely that the end user will choose to visit the site.” (Search Engine Optimization, 2006, p.39)
SEO seeks to achieve high ranking in the search engine results for certain search words or
phrases (Malaga, 2009, p. 132). The lesson: a narrower focus generally improves ranking
(Freedman, 2009, p.28). “SEO is very important for companies that conduct business primarily
online, such as e-commerce, commercial portals, and subscription-based news media and
research sites.” (Freedman, 2009) SEO is also important for businesses that use their websites to
generate sales leads (Kumar, 2007, p. 5). For these companies, understanding which factors can
influence a page’s ranking in a search engine is crucial for any web site that wishes to attract
large numbers of users (Evans, 2007, p. 22). In addition, these companies must also have an
understanding of search bots, ranking algorithms, key-word density, and other complexities as
well (Freedman, 2008). SEO involves analyzing and modifying website to enable search engines
to read it, understand it, and index (or catalog) it correctly. These techniques include
manipulation of dozens or even hundreds of website elements such as Meta tags, page content,
and site navigation in order to improve the site in the SERPs (Malaga, 2008). With regards to
SEO vs. PPC: Effects of Search Engine Marketing 7
Google’s search engine, “Page Rank is one of principle criteria according to which it ranks web
pages.” (Avrachenkov & Litvak, 2006, p.319)
Search Engine Optimization (SEO) is generally considered a very complex and time
consuming process. This is because organic search results are selected and ranked on the basis of
search engine’s proprietary algorithms (Ma, et al., 2010, p. 31). There are over 200 different
factors (or signals) used by Google to calculate a page’s rank (Evans, 2007, p.23). These factors
are intended both to prevent the deliberate manipulation of SERPs as well as to ensure that
Google maintains its ability to return useful, relevant results for user searches (Cahill & Chalut,
2009, p.241). However, the steadily increasing requirements of search engine optimization make
the techniques much harder and arguably more costly to implement. Ultimately, this has lead to
the majority of online business to invest in the quick and easy “fix” for advertising solutions.
Paid search has become the primary business model for web search engines today
(Zhongming, Pant, & Sheng, 2010, p.29). This industry has emerged as a vital pillar for the
success of the major Search Engines—for example, 99 percent of Google’s revenue came from
paid search advertising like Google Adwords (Kumar, 2007, p.8). Paid search accounted for $23
billion for Google alone in 2009. Paid search functions on a “pay-per-click” basis. This means
that with PPC, the site owner only pays when a user actually clicks on the ad and visits the target
site (Malaga, 2007, p.68). While not all clicks may result in sales, the advertiser expects that a
portion of the users who click through the displayed ad will make a purchase of the advertised
product(s) either now or in the future, or that the advertiser will otherwise benefit from the user’s
click (Ozluk & Cholette, 2007, p. 350).
SEO vs. PPC: Effects of Search Engine Marketing 8
Despite the increasing importance and rising popularity of search engines, attention
pertaining to search engine effectiveness largely centers on the number of clicks generated (Kitts
& LeBlanc, 2004). Click-through-rates (CTR) are the rate at which a search engine user is likely
to click on the published ad (Ozluk & Cholette, 2007, p. 351). In essence, a better positioning
yields a higher Click-Through-Rate (Feldman et al., 2006). In their most recent journal article
SEO vs. PPC: Effects of Search Engine Marketing 9
(Zhang, Jansen, & Sprink, 2009) discuss this further:
Click-through-rate (CTR) is a commercial metric that is used to measure user satisfaction with the results retrieved by a search engine based on a query submitted by a user. CTR is an important element reflecting the quality and effectiveness of commercial search engine and online advertising (p.557).
Pay-Per-Click (PPC), also referred as Cost-Per-Click (CPC), enables businesses the
ability to achieve maximum exposure, yet still allows them to control and monitor the amount
spent on towards the campaign. To obtain placement within the sponsored results, advertisers
place bids on relevant advertising keywords and/or keyword phrases. The amount of the bids and
other factors (such as how often an ad is clicked) determine where the ad is placed in Google’s
SERP (Malaga, 2009, p.132). Generally, the higher the bid, the higher the advertisement is
displayed in the sponsored list. However, if a keyword is bid upon on by multiple advertisers, the
search engine then holds an instantaneous, automated auction to determine which of the
advertisers is currently bidding on that keyword are allocated advertising slots (Ozluk &
Cholette, 2007, p.350). Google then analyzes the traffic for all advertisers competing for the
same keyword and gives higher positions to the ads that generate more clicks over those who
offer a similar bid price but that generate fewer clicks (Ozluk et al. 2007).
Sponsored links are primarily relevant for transactional searches. (Rose & Levinson,
2004) referred to these transactional searches as information location goals, where searchers are
interested in locating a product or service. Sponsors are primarily interested in obtaining
qualified customers who are interested in transactions, either now or sometime in the future
(Jansen & Resnick, 2006, p.1950). Furthermore, amongst the literature there were generally three
specific incidences in which PPC was consistently effective. The first is if the business is a well-
SEO vs. PPC: Effects of Search Engine Marketing 10
known, established company (such as Wal-Mart doesn’t) who already has a large number of
loyal customers. Secondly, if the establishment consists mostly of resellers and already are
incurring a loss in profit, due to the depreciation of goods sold as well as the higher cost
associated with middlemen. Finally, a company in which the majority of business is not
conducted online has also proven to be effective (Jansen & Resnick, 2006, p. 1959).
Pay-Per-Click is commonly known to be a much faster way to obtain online visibility.
Generally the advertisement results begin to show up in the SERPs within the just the first week
of activating the campaign. Unlike PPC, one of the drawbacks in utilizing the techniques of SEO
is the considerable amount of time it takes to implement (Malaga, 2009, p. 135). SEO has been
known to take up to 120 days after submission before the initial results become visible (Sen,
2005, p.10). This delayed ranking effect on Google has commonly been referred to as the-
Google sandbox. Because of this, SEO is not looked upon favorably for most businesses
primarily because it makes it particularly difficult for marketers to promote seasonal or “hot”
items that require rapid indexing and ranking (Malaga, 2009, p.134). However, although SEO
takes longer to implement it is important to point out that an optimized site does not drop off the
first results page even when a marketer’s spending slows or stops, as paid search does either.
Paid search companies also tend to offer lower average prices than their organic
competitors (Ma, Pant, & Sheng, p.31). Established according to a bidding, amounts of
10-12$/click for the top premium positions are generally considered the average (Daniela &
Anca, 2009, p.1337). However, organic search engine ranking is known to have a long-term,
sustainable branding impact (Noaman, 2006). Therefore, it can be argued that over time, SEO
will almost always result as the more cost effective. With Pay-Per-Click, this is not the case.
SEO vs. PPC: Effects of Search Engine Marketing 11
When funds allocated for the paid search campaign run out, the website’s visibility in Google’s
SERPs does so as well. Still yet, one of the arguments commonly brought against SEO is that it
doesn’t produce consistent search engine ranking (Sen, 2005). This believed because Google
changes various aspects of its ranking algorithms over time (Malaga, 2007, p.80). However, one
the strongest arguments in favor of SEO is the fact that search engines themselves publish
guidelines on how to optimize Web sites for search engines (Beel, Gipp, & Eilde, 2010, p.177).
In addition, critics that fail to acknowledge that the actual positioning of a paid search
advertisement changes dynamically throughout the day, as it is c constantly updated and subject
to new and revised bids by other advertisers for that same keyword and/or keyword phrases
(Ozluk & Cholette, 2007, p. 350).
Overall, it is generally considered easier, in time and effort, for a company to be listed in
the paid results rather than in the organic (Ma, et al., 2010, p.31). However, although paid search
is the preferred Internet marketing strategy for most online business today, sponsored results are
far less likely to be selected by Internet users searching the web (Jansen & Resnick, 2006, p.
1950). In fact, empirical evidence suggests that most online users ignore the sponsored links
displayed in the paid-placement section (Shen, 2002).
Research conveys that organic results are more appealing to Internet users because the
results are considered more objective and unbiased (Kumar, 2007, p.8). Unlike paid placements,
popular search engines do not directly profit from organic results. Thus, organic results are
preferred by most Internet users (Xing & Lin, 2006; Jansen & Resnick, 2006; Sen, 2005;
Malaga, 2007) and therefore, also more likely to be to be selected. Organic listings also
constantly block spamming efforts or other inappropriate or “black-hat” (Malaga, 2008)
SEO vs. PPC: Effects of Search Engine Marketing 12
techniques that are used in an attempt to manipulate the rankings of organic results. Hence, users
can assume a certain level of reliability from vendors in organic search results (Ma, et al., 2010,
p. 31). Furthermore, because organic listings are more trusted, users are also more likely to buy
from them (Sen, 2005). Therefore, optimized websites appearing higher in SERPs also have a
higher conversion rate or-- sales per visit (Malaga, 2007, p.67).
Eye tracking, has been used to study human behavior for decades and has contributed the
understanding of activities such as reading, scanning, and overall processing of visual stimuli.
For online context, this translates to information about which components of a page are viewed
and how often, and the cognitive load or engagement present upon viewing those components
(Lorigo et al. 2008). Heatmaps as described by (Berendt, 2009), coveys “Heatmaps clearly
show– regardless of content – that people generally inspect pages in an “F shape”. This means
that the “organic ranking visibility” is high only for the first few results but then drops off
sharply (Berendt, 2009, p.754). Therefore, if a business plans to invest in SEO, its highly advised
This data is also consistent with (Jansen and Sprink, 2006).
SEO vs. PPC: Effects of Search Engine Marketing 13
As evident of user perception, the (Eyetools Research, 2005) Heatmap above depicts the
fixations by users on Google’s SERP. As the literature and research concur, the vast amount of
time and attention that is placed when viewing the content around the organic or natural listings.
ConclusionsConclusions
It is estimated that 90% of all new website visits originate from the Internet’s most
popular and frequently used search engines: Google, Yahoo, and MSN (Espadas, 2008, p. 1735).
Given this high percentage, it is more important now than ever for businesses to utilize search
engine optimization techniques to increase their website’s visibility on the World-Wide Web.
Increasing a website’s presence and overall visibility on-line is an essential part generating new
web traffic. Web traffic constitutes mostly, as an indicator of potential customer base and sales
growth for online businesses (Benbunan-Fich & Fich, 2004, p.166) and is often used as a
SEO vs. PPC: Effects of Search Engine Marketing 14
measure of success because higher traffic generally constitutes higher advertisement revenues
(Wolk & Theysohn, 2007).
Today, search engines are recognized to be as useful as and more cost effective than any
other method at driving web traffic (Mamaghani, 2009, p.130).
(Zhang, et al. 2009):
The usefulness of a search engine depends on the relevance of the results retrieved and ranked in response to user queries. While millions of Web pages may include a particular word or a phrase, some may be more relevant, popular, useful, or authoritative than others. Most search engines employ methods to rank the results to provide the best, most useful or most relevant results first (p.557).
Along with the exponential growth of the Internet and web search, Search Engine Marketing
paved the way for an effective way for businesses online to compete. Along with the increasing
importance of searches, search engines play greater roles as critical links between firms that use
the Internet to build their images and their target customers (Wu, Cook, Strong, 2005). Search
Engine Marketing is revolutionary in the sense that it “May level the playing field for small and
medium-sized enterprises with unknown brands, because well-known, “big” brands do not
necessarily own the top positions in SERPs” (Dou, Lim, Su, Zhou, & Cui, 2010).
With 82% of all online marketing activities go towards paid placement campaigns PPC is
undoubtedly the preferred Search Engine Marketing strategy of choice for most online
businesses today. However, as evident by the vast majority of both research and literature,
Internet users do not share the same enthusiasm. Although the distribution of the dollar suggests
that PPC is the most effective strategy, clearly it is a misperception. When comparing Search
Engine Optimization and Pay-Per-Click in terms of these strategies’ ability to generate web
traffic, Search Engine Optimization is generally almost always considered to be most effective.
SEO vs. PPC: Effects of Search Engine Marketing 15
Research proves that sponsored search results do not get near as many clicks as do the organic
search results. However, sponsored links can quite accurately be described as a mere quick and
easy “fix” for an advertising solution.
SEO vs. PPC: Effects of Search Engine Marketing 16
BibliographyBibliography
Avrachenkov, K. & Litvak, N. (2006). The effect of new links on Google page rank. Stochastic
Models, 22(2), 319.
Beel, J., Gipp, B. & Eilde, E. (2010). Academic search engine optimization. Journal of Scholarly
Publishing, 41(2), 176.
Benbunan-Fich, R. & Fich, E. (2004). Effects of web traffic announcements on firm value.
International Journal of Electronic Commerce, 8(4), 161.
Berendt, B. (2009). Ranking -- Use and usability. Bulletin of the Belgian Mathematical Society,
Simon Stevin, 16(4), 745.
Cahill, K. & Chalut, R. (2009). Optimal results: What libraries need to know about Google and
search engine optimization. The Reference Librarian, 50(3), 234.
Daniela, D. & Anca, B. (2008). Optimization Methods of PPC Campaigns. Annals of the
University of Oradea, Economic Science Series, 17(4), 1337-1341.
Dou, W ,Lim, K. H., Su, C., Zhou, N., & Cui, N. (2010). Brand positioning strategy using search
engine marketing. MIS Quarterly, 34(2), 261.
Espadas, J. (2008). Web site visibility evaluation. Journal of the American Society for
Information Science and Technology, 59(11), 1727.
Evans, P. M. (2007). Analyzing Google rankings through search engine optimization data.
Internet Research, 17(1), 21.
Eyetools Research (2005). Retrieved October 14, 2010, from
http://eyetools.com/inpage/eyetracking_research.html
SEO vs. PPC: Effects of Search Engine Marketing 17
Feldman, J., Muthukrishnan, S., Pal, M. and Stein, C. (2006) Budget optimization in search-
based advertising auctions.
Freedman, D. (2009). Optimize Your Website Content. Value Examiner. Professional
Development Journal, 27-29.
Internetworldstats.com, September 2010, Retrieved September 8, 2010, from
http://www.internetworldstats.com/stats.htm
Jansen, B. J. & Sprink, A. (2006). How are we searching the World Wide Web? A comparison of
nine transactional logs. Information Processing and Management, 42, 248-263.
Jansen, B. J. & Resnick, M. (2006). An examination of searcher. Journal of the American Society
for Information Science and Technology, 57(14), 1949.
Kitts, B., & LeBlanc, B. (2004). Optimal bidding on keyword auctions. Electronic Markets
14(3), 186-201.
Kumar, E. (2007). A strategic analysis of search engine advertising in web based-commerce.
Journal of Internet Banking and Commerce, 12(2).
Lorigo, L., Granka, L., Pellacini, F., & Pan, B. (2008). Eye tracking and online search: Lessons
learned and challenges ahead. Journal of the American Society for Information Science
and Technology, 59(7), 1041.
Ma, Z., Pant, G., & Sheng, O. (2010). Examining organic and sponsored search results: A vendor
reliability perspective. Journal of Computer Information Systems, 50(4), 30.
Malaga, R. A. (2007). The value of search engine optimization: An action research project at a
new e-commerce site. Journal of Electronic Commerce in Organizations, 5(3), 68.
SEO vs. PPC: Effects of Search Engine Marketing 18
Malaga, R. A. (2008). Worst practices in search engine optimization. Communications of the
ACM, 51(12), 147.
Malaga, R. A. (2009). Web 2.0 techniques for search engine optimization: Two case studies.
Review of Business Research, 9(1), 132.
Mamaghani, F. (2009). Search engine marketing: Techniques, tools, and utilization. Review of
Business Research. 9(3), 130.
Noaman, A. (2006). Pick me! Pick me! ABA Bank Marketing 38(7), 34-38.
Ozluk, O. & Cholette, S. (2007). Allocating expenditures across keywords in search advertising.
Journal of Revenue and Pricing Management, 6(4), 347.
Rose, D. E., & Levinson, D. (2004). Understanding user goals in Web search. Proceedings of the
World Wide Web Conference (pp. 13–19), New York
Search Engine Optimization. (2006). Journal of Visual Communication in Medicine, 29(1), 39.
Searchenginewatch.com, September 2010, Retrieved September 29, 2010, from
http://blog.searchenginewatch.com/100122-150831
SEMPO.org, 2008 Survey of SEM Agencies and Advertisers. Retrieved September 29, 2010,
from http://www.sempo.org/learning_center/research/2008_execsummary.pdf
Sen, R. (2005). Optimal search engine marketing strategy. International Journal of Electronic
Commerce, 10(1), 9.
Shen, F. Banner advertisement pricing, measurement, and pretesting practices: Perspectives
from interactive agencies. Journal of Advertising, 31, 3 (2002), 59–6
Wolk, A. & Theysohn, S. (2007). Factors influencing website traffic in the paid content market.
Journal of Marketing Management, 23(7/8), 769.
SEO vs. PPC: Effects of Search Engine Marketing 19
Wu, J., Cook, Jr., V. J., & Strong, E. C. (2005). A two-stage model of the promotional
performance of pure online firms. Information Systems Research 16(4), 334-351.
Xing, B. & Lin, M. Z. (2006). A cost-effective critical path approach for service priority
selections in grid computing economy. Decision support systems, 42(3), 1628-1640.
Zhang, Y., Jansen, B. & Spink, A. (2009). Identification of factors predicting click through in
web searching using neural network analysis. Journal of the American Society for
Information Science and Technology, 60(3), 557.
Zhongming, M., Pant, G., & Sheng, O. (2010). Examining organic and sponsored search results:
A vendor reliability perspective. Journal of Computer Information Systems, 50(4), 30.