According to this announcement on Steam Community, Valve’s game Portal 2 Beta is now available on Steam for Linux. To access it in Linux, you will need to opt in to the beta from the Portal 2 properties in the Steam Library.
Firefox can be made into so much more than just a browser via its huge extension base. Yes, this means you can replace some of your instant messenger, chat and microblogging needs by adding just a few extensions. Here are 18 tools that will let you turn your Firefox 3 browser into a communications portal.