New research conducted by BigResearch suggests that Yahoo leads the way in search purchases with Google behind at number 4.

Yahoo! (is) number 1 with a score of 13, with 1st or 2nd place finishes in every category, MSN number 2 at 21, AOL number 3 at 23, Google number 4 at 26 and Ask Jeeves number 5 at 32

The survey shows the impact of search advertising on specific purchase decisions differing across the search engines and search engine market share had nothing to do with it.

search buying decisions by search engine