There have been some conflicting reports on search engine market shares by different analysts. CNET is
reporting that
Nielsen Megaview Search research results for August 2008 show that Google's market share in the U.S. was at 64.6% in contrast to
StatCounter reporting a 77.83% market share for the same period of time. While
ComScore did not appear to have August data yet, their
reports for July 2009 more closely parallel those of Nielsen, with Google reported to have a 64.7% market share.
Source: StatCounter Global Stats - Search Engine Market Share
Given the emerging battle between Bing and Google, not to mention other search engines, this discrepancy in data analysis and reporting could have significant repercussions for advertisers, investors and consumers alike.