5 links
Anthony Hawkins' Wine Reference Material
stratsplace.com
Searchable glossary provides information about hundreds of types of grapes. Also contains vintage charts and tasting note terminology.
De Long's Wine Grape Varietal Table
delongwine.com
Offers information about 144 varieties organized in an interactive table. Also sells a print version of the table.
Enjoying Viognier
enjoyingviognier.com
Features news and information about Viognier, a wine of the month, and a searchable database of retailers and prices.
Pinotage Club
geocities.com
Cyber club for fans of the Pinotage grape of South Africa. Includes information about the grape, a newsletter, links, and membership details.
ZOW - Zinfandel on the Web
dvorak.org
Contains tasting notes and links to Zinfandel-producing wineries.