There are many ceramic and pottery discussion boards and user groups on the
web. Many require you to register before using.
ClayArt (a very active
group averaging about 100 posts per day) Archives of CLAYART messages can be found at http://www.potters.org/categories.htm
http://www.deja.com/group/alt.sculpture
Click these links to get lists of e-group/one-list discussions on pottery and
ceramics (note, some groups are not very active)
http://www.onelist.com/search?query=pottery
http://www.onelist.com/search?query=ceramic
General Craft Discussions
Including how to ship, how to sell, how much to charge, etc.
http://www.jiverson.com/features_folder/messages/index.html
http://forums.about.com/ab-artsandcraft/start/