In our recent post
Why Switch to Linux? we noted that quite a few Linux users cite their reason for switching as it's free. In fact, lack of cost is the reason for many open source deployments, on the individual scale, and in enterprises. While I use a ton of open source software, I still keep my eye on the thriving world of freeware, as well as free services. In this post, I'll round up eight examples of absolutely top-notch freeware and services to complement your open source favorites. Some of these do have tie-ins to open source, too.