Google “Buzz” Facebook & Twitter with Gmail
Today, Google launch Google Buzz. Google Blog said “a new way to start conversations about the things you find interesting and share updates, photos, videos and more. 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.”

http://www.google.com/buzz
Google Buzz feature :

No setup needed
Automatically follow the people you email and chat with the most in Gmail.
Public and private settings

Share publicly or privately
Publish your ideas to the world or just to your closest friends.

Inbox integration
Comments get sent right to your inbox so it’s easy to keep the conversation going.

Photo friendly
See thumbnails with each post, and browse full-screen photos from popular sites.

Connect sites you already use
Import your stuff from Twitter, Picasa, Flickr, and Google Reader.

See updates in real time
New posts and comments pop in as they happen. No refresh required.

Just the good stuff
Buzz recommends interesting posts and weeds out ones you’re likely to skip.
Google Buzz on mobile :

Google Buzz

free android app