Another one of the patterns & practices teams has released the guidance and software they have been working on for the past several months. Check it out at the Web Service Software Factory MSDN site. And check out the Service Factory Community Site. And there is even a webcast about it, too.
Some of the team members have also posted to thier blogs. I'm sure there are more, I just looked at three of them:
I've been watching this team work thier collective butts off. I even helped out with a tiny bit of coaching, pairing, and troubleshooting issues.
If you need to write web services you should check it out.