To me, FriendFeed is already a big thing, and after less than 48 hours on the site it has a permanent bookmark on my Firefox Bookmark Toolbar thanks to Louis Gray’s article about FriendFeed opening up and an invite from Gray to try out the service.
WHAT IS FRIENDFEED?
FriendFeed enables you to keep up-to-date on the web pages, photos, videos and music that your friends and family are sharing. It offers a unique way to discover and discuss information among friends.
Sign up for FriendFeed, invite some friends, and get a customized feed made up of the content that your friends shared — from news articles to family photos to interesting links and videos. FriendFeed automatically imports shared stuff from sites across the web, so if your friend favorites a video on YouTube, you get a link and a thumbnail of the video in your feed. And if your friend likes a news story on Digg, you get a link in your feed. FriendFeed makes all the sites you already use a little more social.
It’s also fast and easy to start discussions around shared items. On FriendFeed, you and your friends contribute to a shared stream of information — information that you care about, because it’s from the people that you care about.
Yeah I copy and pasted from the website. Who better to explain a service than the developers themselves? =P
Nevertheless, FriendFeed is a social network aggregator. Other services that you can pull information from and share include twitter, your linkblog, your website’s RSS, GoogleTalk (for status updates), del.icio.us, ma.gnolia, flickr, picasa, vimeo, netflix, jaiku, last.fm, pownce, reddit, tumblr, zooomr, ilike, amazon, and a few more.