Khymos is a fantastic resource, and has probably the best collection of recipes out there at the moment.
There's also a lot of good stuff at the French Cullinary Institute's Cooking Issues blog .
They've got a good post on hydrocolloids that's quite enlightening.
I actually disagree on the McGee recommendations.
While it's an excellent book, full of great info, I don't think it's a good starting point for molecular gastronomy (in the sense of the cooking movement rather than the more literal sense)
cooking.stackexchange.com/users/1259/yossarian
This very site.
Take a look at the other questions tagged molecular-gastronomy .
Of particular note is this similar question which has a great answer by daniel.
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I can recommend The Fat Duck Cookbook by Heston Blumenthal.
He explains each recipe in detail and goes into the chemistry behind it as well.
There is also On Food and Cooking by Harold McGee, which I think is the reference book to have.
The McGee book has its own Wikipedia article: http://en.wikipedia.org/wiki/On_Food_and_Cooking
cooking.stackexchange.com/users/3756/Henrik Söderlund
Harold McGee's On Food and Cooking for a start.
cooking.stackexchange.com/users/3574/Borbus
Hervé
This' Molecular Gastronomy:
Exploring the Science of Flavor is a good choice if you are interested in the science behind molecular gastronomy.
You may not learn much in terms of recipes or cooking techniques but it provides lots of short essays about the science behind cooking.
Keep in mind about the bad translation though.
cooking.stackexchange.com/users/3766/user3766
Before frequenting this site I had never even heard of molecular gastronomy and now I am intrigued. Is there a good resource to learn about the process either web or in printed format that would be a reliable source of information?
What is a good resource for learning about Molecular Gastronomy?
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<resources><molecular-gastronomy>
cooking.stackexchange.com/questions/10159
cooking.stackexchange.com/users/2283/Varuuknahl
Harold McGee's  On Food and Cooking is a good reference for a start, or you could try The Fat Duck Cookbook  by Heston Blumenthal or the collection of recipes on Khymos. Try Khymos, the Fat Duck Cookbook and On Food and Cooking.
Try Khymos, the Fat Duck Cookbook and On Food and Cooking.