A while back I wrote an article for ServerWatch.com that covered the three main BSD distributions; FreeBSD, OpenBSD and NetBSD. The article looked at the ‘other’ free software operating system range (BSD) and how it compared to Linux. I also looked at Mac OS X (or more specifically Darwin), which is based on NetBSD.After writing that piece I was contacted by a few people who wanted to point out that there are some other BSD variants available. So I started looking around. BSD variants are much harder to come by in comparison to the hundreds (probably thousands) of different Linux-based distributions available. The resulting piece is available now. I started writing this piece many months ago, and since then OpenSolaris has been released. Perhaps a comparison between OpenSolaris, Linux and BSD is in order – let me know if you’d like to see this.