In this research we investigate the effect of search engine brand on the evaluation of searching performance. Our research is motivated by the large amount of search traffic directed to a handful of Web search engines, even though many have similar interfaces and performance. We conducted a laboratory experiment with 32 participants using a 4 2 factorial design confounded in four blocks to measure the effect of four search engine brands (Google, MSN, Yahoo!, and a locally developed search engine) while controlling for the quality and presentation of search engine results. We found brand indeed played a role in the searching process. Brand effect varied in different domains. Users seemed to place a high degree of trust in major search engine brands; however, they were more engaged in the searching process when using lesser-known search engines. It appears that branding affects overall Web search at four stages: (a) search engine selection, (b) search engine results page evaluation, (c) individual link evaluation, and (d) evaluation of the landing page. We discuss the implications for search engine marketing and the design of empirical studies measuring search engine performance.
IntroductionThere has been a rapid growth in the Web search engine market since its inception. Search engines continue to attract a large number of Web searchers and consistently rank as some of the heavily visited sites in the market in terms of the number of visitors (Alexa Internet Inc., 2008). There are numerous search engines on the Web (Wikipedia, 2008); however, only a handful dominates in terms of usage (Sullivan, 2008). From a technological point, this clustering of traffic is interesting because studies report that the performance of most of the major search engines is practically the same (c.f., Eastman & Jansen, 2003). Performance is typically defined as returning useful results and is measured by precision, which is the ratio of relevant documents to the total number of document returned at some point in the results listing. The interfaces of most search engines are also similar, namely, a text box, some verticals (i.e., tabs for searching the Web, Images, Audio, etc.), and a submit button. In studies of search engine interface usability, the results among various search engines have been similar (c.f., Wildemuth & Carter, 2002).Given the similarity in technology and interface design, why do only a small number of search engines dominate Web traffic? Certainly maintaining Web searching infrastructures on a large scale is expensive, but several well-financed companies have been unsuccessful. Do other elements affect the evaluation of a search engine's performance? Seeking the answers to these questions motivate our research.There could be many possible avenues to investigate. In a series of user studies concerning Web searching (Jansen, 2006;Jansen & McNeese, 2005), the participants completed pre-surveys concerning their Web searching habits. One question addressed which search engine the participant used and why. There were ma...