Web Oriented SOA?
Over the years, I've often thought Zapthink have produced some clear analysis. I don't necessarily agree with all points but their analysis has tried to cut through the hype on many occasions.
If you are interested in practical service oriented approaches rather than necessarily buying into the set of assumptions around the term "Service Oriented Architecture" then their recent Zapflash on "WOA..." is worth a read. Don't dwell too much on the title and conclusion its the discursive meat that is worth eating.