Aug 30, 2007 at 11:35am ET by Greg Sterling
Nielsen//NetRatings found that in June and July of this year the major search engines enjoyed high user retention but also high audience overlap, suggesting that audiences are actively using two and three engines. Search engines saw the highest user retention of the three categories that Nielsen compared and examined (search, travel, jobs).
According to the release:
Among the categories, search providers had the highest visitor retention rates, with an average of 71 percent of June visitors at home returning in July among the three leading search players. Google Search led with a retention rate of 79 percent, followed by Yahoo! Search at 69 percent and MSN/Windows Live Search with 65 percent (see Table 1). Visitor retention rates were slightly higher among the work audience, with an average of 76 percent among the three leading search providers.
Notably though, a substantial portion of visitors went to more than one of these three search sites in July. MSN/Windows Live Search had the highest audience overlap, with 84 percent of its unique visitors also going to Google Search, Yahoo! Search, or both. Yahoo! Search had a 78 percent audience overlap with Google and/or MSN, while Google Search had a 63 percent audience overlap with one or both of its two primary competitors.

Google shows the lowest degree of overlap, indicating that it’s the primary search engine for the highest number of users. However, the degree of overlap and active use of Yahoo and Microsoft by so many Google users suggests that some amount of usage could shift to Yahoo or Microsoft as the primary engine if there were sufficient justification for doing so (i.e., some dramatic feature innovation or visibly improved relevance vs. the others).
Share, Bookmark & Discuss This Article
More:
Keep Updated: News Via Email | News Via RSS Feed | News Via Twitter
See more stories like this in the Members Library! Check out the Stats: NetRatings, Stats: Popularity, Stats: Search Behavior sections of the Members Library where this story is filed. Members also get access to exclusive video content, a members-only weekly & monthly newsletter, plus more. Check out all the benefits!
TOP STORIES
SEARCH NEWS BRIEFS
FEATURES & ANALYSIS
RECENT COMMNENTS
Stay on top of all the search news with our daily summary, the SearchCap newsletter. View a sample ›
Search Engine Land produces SMX, the Search Marketing Expo conference series. SMX events deliver the most comprehensive educational and networking experiences - whether you're just starting in search marketing or you're a seasoned expert.
SMX Web Site » | SMX Difference » | SMX News »
Join us at an upcoming SMX event:
Learn more about search marketing with our free online webcasts and webinars from our sister site, Search Marketing Now. Upcoming online events include:
Featured sites from our Blogroll
Become a premium member today and receive:
I wonder when the world will realize that Yahoo is not a search engine and it should not be rated next to Google. I’m sure if Nielson did this same research and included Facebook and MySpace vs Yahoo there would be some real statistics to be properly utilized by Advertisers.
Currently however, I’m taking this as great news, if I’m putting 80/20 advertising dollars on Google/MSN, I can truly justify that bypassing a Yahoo budget isn’t hurting me at all, based on this study.
Additionally, (IMO) the only way that Yahoo or MSN could take on Google would be by stripping down all that rubbish they sold and reestablish themselves as unbiased entities.