oops! google also warned itself
After you search for any keyword, any languages in google, all results have flagged that "This site may harm your computer." even though it's Google !!
This case was reported through many sites in few minutes (especially twitter), for examples, Slashdot, TechCrunch or BlogNone
Update: Google has officially announced in this case that there was an human error in warned sites updating list that checked root mistakenly, so site warning was applied to ALL sites. [Google Blog]