Sourced with compliments from http://www.computerweekly.com/Articles/2009/09/15/237731/crowdsourcing-reveals-600-search-engine-flaws.htm
A competition for software testers to reveal bugs in major search engines has unearthed over 600 in Google, Google Caffeine, Bing and Yahoo.
The Battle of the Search Engines, as it is known, was carried out by uTest, which uses crowdsourcing to test software.
Over 1,100 software professionals from over 50 countries took part in uTest’s Battle of the Search Engines.
Of the 600 bugs found, about 78 were said to be “show stoppers” – or very serious flaws.
Google had 130 bugs, with 8% show stoppers, Bing had 321 bugs, of which 14% were showstoppers, and Yahoo had 70 bugs, with 10% showstoppers, said the report.