A Guide to Greek Wine: From Retsina to reds and whites, this site tells you what to drink.
All About Greek Wine: Offers information about regions, indigenous grape varieties, history, labels, and producers. A joint venture of a group of Greek wineries.
Greekwinemakers.com: Covers the country's wines and winemakers, including information about the regions, grape varieties, history, and appellation laws. Also contains some links with reviews.