plastic injection molded part knowledge?

Does anyone know of a good database of plastic injection molded part knowledge, tips and tricks, seminars, etc?

Basically a good way to really get to know this process and the extremes of what can be done with it.

Thanks all!

Try this out:
http://engr.bd.psu.edu/pkoch/plasticdesign/e_frames.htm

Try here too:
http://www.bayermaterialsciencenafta.com/resources/

You will need to register, but it’s free. These guys are the experts!

Alan

This page links to a whole range of design guides, the 2nd one down general principles (6.5M) is a good technical document

hope this helps

I just wanted to thank the people who posted. These links are excellent!