A study of the usefulness of the BPEL language, and not just regurgitating the marketing hype from vendors. The paper “ Life After BPEL?” by W.M.P. van der Aalst et. al. is a refreshing view of the good and the bad or missing part of BPEL.

I found another one from David Chappell who points out that BPEL is less important than you think.  Gotta agree with that.