Here is a short list of links to sites that have an impact on today's wine world.

Able Grape dedicated wine search engine.

AWRL The home of the Australian Wine Research Institute

Belmaati Joe Belmaati's has a growing community of fine wine lovers.

Burgundy Report is Bill Nanson's quarterly e-zine for those interested in Pinot Noir.

Cephas Photolibrary Mick Rock's wine photographs are excellent.

Decanter Decanter's website has developed it into the world's best site for wine news. 

Fine Wine Diary Richard and Toby Bailey have assembled an extensive, searchable collection of fine wine notes.

Fine Wine Magazine is the online home of the brilliantWorld of Fine Wine magazine. You should be subscribing to it.

Matching Food and Wine.  Fiona Beckett's authoritative site.

Onwine Jeremy Oliver's site is one of the best among Australian writers.

Robert Parker is a pay site which contains an archive of Robert Parker's tasting notes and ratings. 

Jancis Robinson An impressive website. Has a pay-to-view section, but there's enough free stuff to make this worth visiting.

UC Davis An interesting site for those interested in wine science.

Dr. Vino Tyler Colman's wine blog is worth a visit.

Wine Anorak Dr. Jamie Goode's online wine articles and blog remain an excellent introduction, source and humorous read on the world of wine.

Wine Business International is the best international trade title. I was its chief editor for its first three years of existence.

Wine Doctor is Chris Kissack's site.

Wine Journal Neil Martin's site within Robert Parker's board.

Wine Lover's is a large American wine site from Robin Garr with varied content.

Wine Searcher is a brilliant resource that allows you to search for a particular wine through the lists of thousands of merchants worldwide.

Wine Pages Tom Cannavan's long-standing site hosting an active wine
discussion forum.