Here is a list of sites that I have found that have LDraw models:
- widetent. The page is in Japanese with English translations, but there is a link to download a zip file with over 350 models.
- Holly-Wood.it. A small space themed collection.
- LDraw group on flickr. Some of the pages will have links to the actual models. You can also do a LDraw related search on flickr.
- Brickshelf. You can do a search for "ldr", "dat", and "mpd".
- MOCpages.com. A search for "LDraw" in the search field will find the LDraw models.
- lugnet.com has scenes, models, and some ideas. You will need to explore the boards to get at the models.
- GallaghersArt has a lego forum with many models.
- 3D Lego Models
- Mladen's LEGO® Creations
- BrickCommander. See the "Download" link.
- Bram's LEGO Site
- Sir Bugge's Lego Page: Page layout doesn't render very nice, but has some really great models.
- More to come...