Facebook messaging, email hack, RockMelt

The reports so far are not good. They want to own your conversations, friends, IMs, SMSs, and your address books from your email applications.

Dan Gillmor explains why that's not such a great idea

Tech Crunch explains how to export your Facebook friends' email addresses

in case you decide to pack up and go somewhere else at any point. 

RockMelt is another very nosey little app