Meebo.com is a great site that allows you to consolidate all of your instant messaging services into one web site. The best feature of the site is that it allows you to log in using your web browser. You don’t need to download an application to you desktop. Everything is done from right inside your browser. This is great because it allows you to log in from any computer without having to dump software on it. There is also a software client available if you prefer.
Microsoft Virtual PC 2007 is a free program offered by microsoft to allow a person to run mulitple operating systems from a single PC. This means you can run Linux or even a different copy of XP or Vista from the same machine.