rest-discuss
   Introductory-level discussion forum. (Yahoo! Groups)
   http://tech.groups.yahoo.com/group/rest-discuss/

rest-explore
   Forum for the exploration of issues related to REST. (Yahoo! Groups)
   http://tech.groups.yahoo.com/group/rest-explore/

ucapi-discuss
   Discussion of web service interfaces using the REST architectural style for enabling collaborative authoring and content tools based such as weblogs, wikis, news aggregators and "rich Internet applications." (Yahoo! Groups)
   http://tech.groups.yahoo.com/group/ucapi-discuss/