There's a movement toward modes of communication opening up to a wider circle. Google has added a controversial feature called "Buzz" to its Gmail. E-mail has generally been considered to be for private communication between two people. Or if sent to several people, the sender deliberately chooses them. Buzz automatically broadcasts certain aspects of one's profile, including a changing status statement, to a group of contacts. There's been some controversy about how those contacts are chosen. Here's the latest.
(Feb. 16, 2010 WJLA)
Buzz is trying to imitate Facebook in its degree of openness, and Facebook has recently changed to allow it to imitate (and encourage) the openness of Twitter, which broadcasts not only to a select group of "friends," but to the public at large.
(Dec 9, 2009 TechCrunch)