A Practical Guide to Sous Vide Cooking - Douglas Baldwin's definitive guide to sous vide (a must read for all) 

Sous Vide Cooking- A blog about cooking with low temperatures

Sous vide -  Wikipedia

Cooking Sous Vide- From vacuum food sealers and water to perfect food

You Tube Sous Vide - You Tube

Cuisine Solutions- Commercial Sous Vide food manufacturers (very interesting)

eGullet.org- a service of the eGullet Society for Culinary Arts & Letters (search for Sous Vide)

Khymos-  Interview with Douglas Baldwin on sous vide

Wall Street Journal- Very good article on sous vide

Turkey sous vide video part 1 and 2 - Alinea's Grant Achatz walks us through a sous vide Thanksgiving

Zest Cooking - Barry Feiglin the cook behind  the gourmet catering company, Zest Cooking,  shares his sous vide recipes and techniques using the Sous Vide At Home temperature controller.