Plurk — A way to keep a log of the great articles and sites that you've visited. It has a timeline. Your friends or total strangers can see your links. This is really new, but it may turn out to be my favorite. I didn't see a search function though.
FriendFeed is another social networking link file. It finds links through delicious, twitter, facebook, craigslist, and other sources. I find this useful, because so many people come to my blog from these sources. I like to see what people are saying about me.
I know that a lot of people are switching over to WordPress. I poked around a bit. It has some nice templates, but I thought they were harder to customize than the Typepad blogs.
I've been playing around with TweetDeck to combine the status updates from Twitter and Facebook, but I don't love it. You can't read comments on your friends' status updates and have to log onto Facebook to reply. It is pretty looking though.
TwitterUrly is useful for seeing what links are being through around Twitter. You can search for individual posts that you write, but you can't just plug in your blog and find all the links. Using a key word search in Twitter is more useful for that. Still, I do link knowing what people are talking about. It seems that Apple Tablet is the big thing today.