Jeff Berry is one of the most important cocktail historians for Tiki, or how it is more properly described "Exotic" cocktails. On his site he provides some additional insights on what he has uncovered regarding this classic style of drink, as well as details about his travels and adventures.
A great website with some great recipes
Kindred Cocktails is an online cocktail database with a slight difference, it actually allows you to add your own cocktail recipes to the site and see recipes others have added.
Cheryl Charming has turned her love of bartending and instictive creativity into an ever broadening set of opportunities and resources. On her site you will find facinating information for consumers, bartenders, and bar owners.
The Liquid Muse
Natalie Bovis-Nelsen "is" the Liquid Muse. On her site she covers a world-wide range of wine and spirits information, events, and products.
The Wormwood Society
Absinthe has made an important comeback in recent days, and the Wormwood Society is one of the key places to get information about absinthe, reviews on absinthe, as well as very active and informative discussion forums.