With all this craze around microblogging, IM & co, it's become impossible to track what the other folks are doing / saying.
Twitter's downtime doesn't help either.
I find that Friendfeed aggregates very well all of these services, but it's hard to use (UI wise, not too friendly). My trick :
-> add friendfeed's RSS feed to your RSS reader (I use NetNewsWire on a mac), and tada : you got the history in the feed, so you're not missing anything :D, and it updated itself whenever someone comments on a feed (which is tiresome with Twhirl for example, because growl only catches the headline).