Here are a few links of my favourite sites

http://www.youtube.com/user/all3dforum Here are a few tutorials for c4d on youtube

http://www.videotuts.net Another site with all sorts of tutorials fom photoshop to c4d

http://www.turbosquid.com A great place to find lots of 3d models

http://forums.cgsociety.org Some great help for learning how to use 3d applications