SOA, SAAS, ESB, ISB, REST, WCF, BizTalk Services Channel 9 Video
Check out Steve Swartz, Clemens Vasters and David Chappell talk about above buzzwords in this Channel 9 video. It's a great video that covers a wide variety of topics related to services. See the video also to see what answers were provided when Charles asked the question - Is WCF complex?".