One of the most incredible online resources for polymer clay information is the Glass Attic, an encyclopedia of random tips, hints, and other tidbits from all kinds of sources. It is an overwhelming site that can be a bit chaotic at times, but if you have an idea of what you're looking for (for example: how to condition clay), it's an amazing resource. The author, Diane Black, is constantly adding to the site, so it's never the same place twice. It might be a bit overwhelming for complete beginners, since it does help to know a bit of polymer clay jargon going in.
Hopefully, though, this tiny food blog will get you up to speed with the beginner techniques and jargon you'll need to know!