Y Combinator tends to fund companies that will be acquired, rather than become companies that displace existing huge corporations. Just a rule of thumb, of course, and there are a few that could run to IPO in three to five years if they don't get acquired (and a very few for whom that's actually the pretty firmly held goal).

Nonetheless, corporate America is a hundred+ years in the making. We're not going to take over with Web 2.0 features. You'd better start thinking bigger, much bigger, if that's your aspiration.

"Bluto's right. Psychotic, but absolutely right. We gotta take these bastards. Now we could do it with conventional weapons that could take years and cost millions of lives. No, I think we have to go all out. I think that this situation absolutely requires a really futile and stupid gesture be done on somebody's part."