True but conditionally: I blame the Facebook on programmers not delivering these puny tools to the public. We collectively didn't get much further than the blogroll. Sharing something was done with idiotic bookmarklets until firefox (I think it was) sentenced them into the void.

For me personally the best "joke" (I think it turned out to be) was to propose freenode profile pages and friends lists. (IRC 3.0!) The mere suggestion made the nerds really angry. When I realized it was a joke I did what all comedians do and added additional puns like putting advertisement on the profiles. Safe to say my development effort was as bad as the response.