According to Nielsen//NetRatings MegaView Search, 58% of Google searchers also visited at least one of the other top two search engines, MSN Search and Yahoo! Search, showing that even though Google’s market share is dominant today, there is significant opportunity for its competitors to grow their share. The use of multiple search engines is not limited to Google’s searchers. Nearly 71% of those who searched at Yahoo! also visited at least one of the other top two search engines, and 70% of those who searched at MSN also tried their luck at one or both of the other two.
| Top search engines and searchers who use other search engines |
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| Search engine | Unique searchers, 000 | Unique searchers who used other search engine, 000 |
% of searchers using other search engines |
| Google Search | 70,998 | 41,267 | 58% |
| Yahoo! Search | 46,774 | 33,099 | 71% |
| MSN Search | 40,250 | 28,021 | 70% |
| Source: Nielsen//NetRatings |
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