There were a rash of OpenSolaris articles and pieces over the weekend, all of which are worth a read.

First up, a piece I've mentioned before, the OpenSolaris Lessons Learned by OpenSolaris Community Manager Jim Grisanzio. Jim has also done an interesting Story of OpenSolaris, from the perspective of someone at the front line of the process.

There's also been an excellent comparison, at the kernel internals level, of the FreeBSD, Solaris and Linux kernels. This is a technical piece and the quality and level fo the material is excellent. Certainly worth a read if you want to understand the acute differences between the ways the kernels work.