Posted this link here too. Great site...

The site is easy to navigate and logically organized. Just be very careful to limit your quality expectations and check everything you download. I have not found any Type Catalogs from this site and most families are much larger than necessary. Check the Aeron Chair from Herman Miller. It is over 2MB and has a considerable amount of left-over CAD content. I was able to recreate the family for our environment with the same geometry, fewer tesselation lines, fewer parameters and about 40% smaller. Another serious problem is the Spacesaver content - it seems to work but is again over 2MB and the arrays are so complex and cumbersome, any changes in a project causes a major performance drag.