I know I've probably got too many of these social web applications on the go at once, and perhaps shouldn't be adding yet another one. But FriendFeed looks as though it might actually improve the situation. It ought to cut down the amount of time wasted visiting all those various sites, because it consolidates all of the feeds onto one page.
My FriendFeed page is at http://friendfeed.com/aderow. Get involved!