Brizzly was one of the early web based third party Twitter client to become popular amongst the web users.
It was acquired by AOL and is now being shut down.
Brizzly team said that the service would be discontinued at the end of March. They said:
I know this stands in stark contrast to the last post I wrote, wherein I said that “kill Brizzly” wasn’t on our “to do” list heading into our new roles at AOL. That statement still holds true, though. We didn’t plan to get rid of the service we spent the prior year or so building, but we knew there was a possibility it might not make sense to continue work on it. Sure enough, once we set to the task at hand—improving the hell out of AIM—we had little to no time to work on Brizzly, and it became clear that the new things we’re working on are far more worth our time and attention.
They are suggesting that users should find themselves a new Twitter client. Ever since Twitter messed up the TweetDeck client, a lot of people are hunting for a new decent one. I personally found MetroTwit… What are you using these days?