The OGL Saga
You might have heard rumbles among D&D players recently about a change to the open game licensing. The story is interesting but complicated and I've been waiting for Ken and Robin to give us their run down.
You can hear it on their podcast here There are subscription links there as well. They do a fantastic job explaining the history and reasons why the companies that owned the D&D trademark released the rule set under what is essentially an open source license.
I can recommend this podcast in general (and I probably have). It is the only feed where I will suffer advertisements (skipping them instead of unsubscribing entirely).
The infrequently updated blog.