What is Google Buzz?

Google Buzz is a new way to start conversations about the things you find interesting. It's built right into Gmail, so you don't have to peck out an entirely new set of friends from scratch — it just works. If you think about it, there's always been a big social network underlying Gmail. Buzz brings this network to the surface by automatically setting you up to follow the people you email and chat with the most. We focused on building an easy-to-use sharing experience that richly integrates photos, videos and links, and makes it easy to share publicly or privately (so you don't have to use different tools to share with different audiences). Plus, Buzz integrates tightly with your existing Gmail inbox, so you're sure to see the stuff that matters most as it happens in real time.

Google "WAVE" Update

"WAVE" Combines instant messaging, e-mail, and real-time collaboration, Wave is an early form of so-called real-time communication designed to make it easier for people to work together or interact socially over the Internet. Google started letting developers tinker with Wave at midyear and then introduced the tool on a trial basis to about 100,000 invited users starting on Sept. 30. Invitations were such a hot commodity that they were being sold on eBay (EBAY). For Google the hope is that Wave, once it's more widely available, will replace competing communications services such as e-mail, instant messaging, and possibly even social networks such as Facebook.

If Wave takes off, applications created by outside developers could make it more useful, and an app store would give those programmers and their financial backers a share in Wave's success. Already, independent software developers have built and tested Wave applications that handle such tasks as teleconferencing, videoconferencing, and multiplayer gaming.