Blockprojekt is a daily blog launched back in 2006 by Kurt Block and Stefan Bergi. All you will ever find there is about cubes. Whether these be images, movies, illustrations, Blockproject is about cubes and cubes only.
Included on the blog is the link to Block Generator. Created using Flash, BG allows you to create many permutations of cubes. Shaded, wireframe, isometric or perspective projection, you can explore thousands of different ways cubes can be illustrated. The project was created back in 2005 and somewhat an inspiration for the blog that still runs today.