Google Buzz, the latest social network feature from Google which is built-in to Gmail allows you to connect to several sites and publish latest RSS feeds updates to your Google Buzz.
In order to add sites to Google Buzz, you got to first edit your Google Profile by adding sites to it.
Once sites are added to your Google Profile, you may go back to Google Buzz in your Gmail, and click on the “Connected Sites” to add those sites to your Google Buzz. Whenever there are any updates, they will be published in your Google Profile and Google Buzz. That is it, simple! 
P/S: You may also submit sites to Google Webmaster Central.
It’s wired. This doesn’t work for me
Yeah, this doesn’t work for me either. I updated my Google Profile, saved the changes, and the new links do not show up in Buzz even after a reload.
It works after you add it to Google Webmaster Central. Thanks!
Well, it seems to work for me fine!