If I would talk to you about my family life, I think you wouldn't understand the one half, and you wouldn't care about the other half. Conversely, if I would talk to my family about the latest tech topics, perhaps they wouldn't be interested on any detailed level, nor understand half of what I'm saying. Enter Google Buzz. After one day of using it I get the feeling it mixes the two groups (and a couple of other groups) in potentially all the wrong ways.