YouTube probably doesn't deserve to be lumped with Twitter, Tumblr, or Flickr, but you're right -- Facebook has been a part of my every day fabric for a few years now, and it's only growing.
My parents, cousins, aunts, and uncles all use it, for goodness' sake.
Sites I'm in contact with every day: Facebook, Google (search, mail, reader), YouTube, Twitter, and HN.
As an aside, I honestly think Twitter will become very mainstream. I'm already seeing more pop-culture references every day, and have friends I never would have expected to see on it following me. It's certainly busted out of the Silicon Valley bubble, which honestly surprised me a lot. A year ago I thought of Twitter as the quintessential by-the-Valley-for-the-Valley startup.
> As an aside, I honestly think Twitter will become very mainstream.
I'm rooting for Twitter to succeed independently (e.g. not acquired by Google or Facebook).
I think I started suspecting Twitter was reaching out to the mainstream (or at least the younger generation) when I would click on random public timeline and/or summize search result rows and find people who had 40-50 followers, talking about what was going on in their life (e.g. normal, average people not social media cultists)
The power of Twitter is that is like a cocktail party laced with real-time search capabilities.
My parents, cousins, aunts, and uncles all use it, for goodness' sake.
Sites I'm in contact with every day: Facebook, Google (search, mail, reader), YouTube, Twitter, and HN.
As an aside, I honestly think Twitter will become very mainstream. I'm already seeing more pop-culture references every day, and have friends I never would have expected to see on it following me. It's certainly busted out of the Silicon Valley bubble, which honestly surprised me a lot. A year ago I thought of Twitter as the quintessential by-the-Valley-for-the-Valley startup.