FreeNAS is an open source operating system based on FreeBSD and, as its name implies, designed for networked storage. The project recently celebrated the release of FreeNAS 8, which racked up some 43,000 downloads in the first 48 hours after its release.
Are you looking for an open source, Web-based e-mail and groupware suite with its own development framework, Ajax interface, more than 50 applications, an active developer community, and millions of end users all over the world? The Horde communication and collaboration suite may not be as well known as the big name commercial offerings, but according to lead developer and release manager Jan Schneider it has just as much to offer, and more.