Illes Balears Qualitat: Wine - Guide to the regions and official quality designations of the Balearic Islands, including grape varieties, production data, climate, and vintage ratings. - http://www.illesbalearsqualitat.com/illesbalearsqualitat/distintius.jsp?id_dr=331
Mad About Sherry - Information about the drink's history, the grapes used, and its production. Contains a listing of its types and styles. - http://www.madaboutsherry.com/
Sherry - Information about the history, handling, producesr, and enjoyment of Sherry from the official governing body of the appellation. [Flash required] - http://www.sherry.org/english/index.htm
The Spanish Wine Page - Offers tasting notes, along with information on regions, grape varieties, labels, and winery visits. Also includes vintage charts and wine-related links. - http://www.jrnet.com/vino/
Dominacion de Origen Bizkaiko Txakolina - Information about the Basque Bizkaiko Txakoli appellation. Lists production zones and regulations. Also available in Euskara and Spanish. - http://www.bizkaikotxakolina.org/
Best Spanish Wine Guide - Search by name, grape, place of origin, price, type, and rating. Also includes details about regions of production and contact information for the producers. - http://www.bestspanishwines.com/