Sociolinguistics

Informational page on sociolinguistics with a very large section on dialects.
http://www.unc.edu/~gerfen/Ling30Sp2002/sociolinguistics.html

Dialectology

Includes a wealth of general information on dialectology, as well as papers, presentations, links, and information on Dutch dialects.
http://odur.let.rug.nl/~heeringa/dialectology/

International Society for Dialectology and Geolinguistics

Committee, membership, and publication information.
http://hem.bredband.net/b295966/sidg/