There are two main resources for POV-Ray. First of all the POV-Ray homepage. It contains everything you need to get started with POV-Ray (installation archives, pictures, documentation, and links to other valuable POV-Ray resources). Second the IRTC homepage. The homepage of the Internet Raytracing Competition presents thousands of astonishing pictures and animations made with POV-Ray or other raytracing programs. Just take them as input for your own rendering. They are really inspiring!

There are a lot of pages dealing with POV-Ray. I just picked a few of my favourite's.