Google Buzz is built right into Gmail, so there's nothing to set up — you're automatically following the people you email and chat with the most.

Buzz makes it easy to quickly flip through photos and experience them the way they were meant to be seen: big and full-resolution. And videos play inline so you can watch them without opening a new window.

Google will be rolling out Google Buzz to everyone over the next few days; you'll see a new "Buzz" link under "Inbox" when it's on for your account.