This is a great introductory article on REST by Steve Vinoski of IONA titled "REST Eye for the SOA Guy" (PDF) that has been published in the current issue of IEEE Internet Computing. For more in-depth info, check out the RESTwiki .

P.S. My kids were kind enough, in the recent season of sharing, to share a rather nasty cold with me. Towards the end of the day yesterday, my co-workers were making the "warding-off-evil" signs in my direction,  so I am taking the day off today. Now that the medication has kicked in, I am using the temporary relief as an excuse to catch up on some technical reading which, unfortunately, I can tolerate only for short bursts. <sigh>