XML-RPC: Alive, yes; but still kicking?
I've built and consumed SOAP web services. I've consumed REST web services. It wasn't until a couple days ago I got a chance to consume an XML-RPC web service. I'll readily admit, I'm still a little unsure of the exact differences between the two, but the more I Google, the clearer it is becoming.

http://www.koders.com/coldfusion/fid6A839C1CD0C030...
Koders seems to be pretty stable, so I am guessing its a good place to bookmark
The XML-RPC library I was using is here:
http://www.codersrevolution.com/enclosures/xmlrpc....
I believe credit originally goes to Roger Benningfield (http://admin.support.journurl.com/)
Another XML-RPC implementation that I have NOT used is here:
http://www.codersrevolution.com/enclosures/xmlrpc....
Credit for this one goes to Critter Gewlas (http://www.alagad.com/go/blog-entry/the-pain-and-a...)
Hope this helps.