I am not sure if '(Free) BSD Jails' should be in here, because it's not a Linux container, it's something else entirely. Especially when you look at the details. But having said that, this article does read as a nice overview, especially for those who are still undecided with various options of resource separation.
Jails are fine for the most part I think. A problem is resources... FreeBSD lacks something like cgroups - But I think besides disk io throttling every other feature of cgroups is already there in FreeBSD but implemented in a different way.
