They can't be Google. Google survived the bubble by staying a small private company that bigger companies didn't see as worth acquiring. It saved them from dying with those companies when the bubble popped.
AOL had been slowly dying since it's 2000 merger with Time Warner. It's just so large that it's been flailing about for almost two decades.
I'll give you Yahoo. While their current demise may have been related to wounds from the dot com bubble, I think they could have been fine had they not overexerted themselves trying to return to glory. I can't blame them for trying, though.
