Flock is a fully integrated social media web browser that lets you see your recent updates from Facebook, MySpace, Twitter, Digg, Delicious, Flickr and YouTube.
You can also make updates, manage media uploads, drag and drop items to share with friends, blog straight from a pop-up window, and get a customized homepage with your network updates and RSS feeds.
Essentially a tricked-out version of Firefox, it still has some room to grow and integrate with more social sites, but it has its basics covered in a slick and useful package.
Download the browser at flock.com.
FriendFeed doesn't send info to your social sites, but it gives you updates on all the sites your friends are using and creates a master feed of all your online activity.
If your friends aren't set up on FriendFeed, you can create an "imaginary friend" to import their blog, Flickr, Yelp, Twitter and other info streams.