What's the worst thing that could happen to Google?
human_v2: I don't think advertising is going to be able to sustain Google indefinitely. As more tech-savvy users get on the web, their tolerance for advertisements will dwindle, along with advertisers' return.  Google probably knows this, which is why they've moved into other markets like Android and Google's office tools.  As far as search goes, I think they're either going to be king forever as we know it, or a 'better' search will come out... though I can't think of what could make search better than what Google has.I, personally, would like to see Google become their own ISP. When there was news they were buying up 'dark fiber' I thought this might be in their future plans.