Cyberpunk impresario William Gibson gives props to Wiktionary:
So is Google officially a verb now? When I wrote Pattern Recognition, it occurred to me that I could use it as a verb and it also occurred to me that someone might already have done so. I thought it didn't matter too much. If I'm first that's great, but if I'm not, then it's just good reportage in a way. Sites like Wiktionary track new usages and neologisms. The page on Google as a verb went back almost two years!
http://www.guardian.co.uk/online/story/0,3605,946503,00.html