What are renders, where can I get new ones and what might they do?

Ummmm.... Renders are basically when sum1 makes a scene in a 3D program, and "renders" it into an img (eg .jpg or .bmp). You can make your own, if you have a 3d program (look in the discussion section, it will tell you of one that is free [EDIT: www.blender.org is the URL of the free 3d program]) or you could probably do a search on the internet for some