DistroWatch has published a review on Debian GNU/Linux
Debian is not quite like any other distro out there. If bigger is better, then Debian wins hands down. Aside from having the largest collection of free software packages, Debian also runs on 11 platforms. But there is more to Debian than just size. Almost uniquely among distros, Debian is a non-commercial development project run by volunteers spread around the globe. That the efforts of all these people manage to come together to produce a well-tuned distro (rather than breaking down into sheer chaos) is in itself quite an accomplishment.Read more
In order to keep things organized, Debian is divided into three branches - stable (currently Woody), testing (currently Sarge), and unstable (Sid). Debian has a fearsome reputation for being difficult to install, and unstable is even more "interesting" since it requires that you install stable first. Travel writer and recent Debian convert Robert Storey tackles the whole installation procedure head on and gives his report below.