Arts and Collectibles:

About Antiques http://antiques.about.com

About Collectibles http://collectibles.about.com

American Society of Appraisers http://www.appraisers.org

Antiques and Collectibles Guide http://www.acguide.com/

Antiques (Bizweb) http://www.bizweb.com/categories/antiques.html

Antiques Roadshop Online http://www.pbs.org/wgbh/pages/roadshow/

Appraisers Association of America http://www.appraisersassoc.org/

Kovels http://www.kovels.com