What is FreeBSD?

FreeBSD is an advanced operating system for x86 compatible, DEC Alpha, IA-64, PC-98 and UltraSPARC\xAE architectures. It is derived from BSD, the version of UNIX\xAE developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.

Cutting Edge Features

FreeBSD offers advanced networking, performance, security and compatibility features today which are still missing in other operating systems, even some of the best commercial ones

What is the difference between FreeBSD and Linux?

(note: not which is better, zealots!)

The basic differences has to do with the code base, the organization of the developers, and the driving philosophies. The FreeBSD project provides a WHOLE operating system environment (complete with userland, ie basic utilities) and Linux focuses on kernel development.

FreeBSD as a workstation