Understanding WCF Communication Options in .net Framework 3.5

"There's a new paper by David Chappell that is worth checking out.  Entitled "Dealing with Diversity: Understanding WCF Communication Options in the .NET Framework 3.5", it discusses WCF and its applicability to REST as well as WS-* style communications. 

As you may know, there's been lots of discussion about whether SOAP-based or REST-style approaches to services interfaces are the right thing. 

If you're not familiar with the debate, here's the plot summary: that REST-style interfaces can be useful in basic scenarios, but if services-based applications demand things like reliabilility, transactions, forwarding, or message-based security, then SOAP with the comlpementary WS-* family of standards is probably a better approach.  (Regarding REST, a secondary point is that many people say REST when what they mean is HTTP QUERY, and the two are different things.  See my note below on Amazon SQS.)"