For me it's twitter is where I find people I don't know, and facebook is where I find people I do know.
Twitter is useful for me as an aggregator for gathering twitter posts by people I'm interested in. All of my family members who do use twitter also have the FB<-->Twitter thing hooked up so I'm not missing anything from them by ignoring twitter.
Personally, I find very little value in twitter. Maybe it's because I'm in the wrong demographic or my social circle doesn't use it, I don't know. I could imagine a world where we posted everything through twitter, but in reality almost nobody I know personally actually uses twitter.
Twitter is useful for me as an aggregator for gathering twitter posts by people I'm interested in. All of my family members who do use twitter also have the FB<-->Twitter thing hooked up so I'm not missing anything from them by ignoring twitter.
Personally, I find very little value in twitter. Maybe it's because I'm in the wrong demographic or my social circle doesn't use it, I don't know. I could imagine a world where we posted everything through twitter, but in reality almost nobody I know personally actually uses twitter.