I have been looking at a product called mule which is basically a Enterprise Service Bus. So to understand what Mule did I had to find out what an ESB is and this presentation was pretty useful and very detailed at 60 minutes longhttp://www.infoq.com/presentations/Enterprise-Service-Busif you like comedy check out this funny podcastHosks Half Hour - http://hoskshalfhour.blogspot.com/