AFP 548 has written a detailed analysis of Apple's 10.4 Server.
While Ars has detailed the changes in 10.4 Client, AFP 548 goes into elaborate detail on the behind the scenes changes in 10.4 Server. Some of the subjects discussed include Open Directory (LDAP), new Client management, Apple's implementation of ACLs, implementation of the Jabber IM protocol and chat logging, as well as other details from someone who works with and implements OS X Server solutions professionally.
[robg adds: This is the most detailed look at Server that I've seen yet -- reviews of Server have been somewhat hard to find, which is why I chose to run this as a story instead of just a link. If you know of other Server reviews, please list them in the comments.]

