Yahoo Buzz: Yahoo did it about an year ago

Just within an hour of Google's launching the Buzz, Yahoo released following PR communication:

It’s been almost a year and a half since we first launched Yahoo! Updates – a social feature that lets people share their status, content and online activities and stay connected to what their friends and family are doing on Yahoo! and across the Web – and we wanted to share the latest on what’s happening with Updates:

There are now more than 200 Yahoo! and third-party sites that feed into Yahoo! Updates – like Flickr, Twitter, YouTube, Yelp and Yahoo! Buzz – allowing people to see and share updates such as when they’ve uploaded photos, changed their status, buzzed up a news story or posted a new restaurant review, all from Yahoo!
Yahoo! Updates now appear throughout the Yahoo! network, in popular sites and services like Yahoo! Mail, Yahoo.com, and Yahoo! Messenger and across our content properties, meaning people can always keep up to date with their friends’ latest activities
Yahoo! Updates are featured prominently on the “What’s New” section of Yahoo! Mail, which is used by more than 300M people worldwide. People can also update their status and share it with friends and family directly from the “What’s New” tab
Yahoo! Updates are now available globally
Additionally, Yahoo! recently announced an expanded integration with Facebook that will allow people to connect with Facebook friends on Yahoo! and share Yahoo! content with Facebook friends as well
Ultimately, Yahoo! sees social as an enabler and as a dimension that is part of everything we do—and everything people do online.
Let us know if you have any questions or would like to hear more about Yahoo!’s social features.