A month ago we've started 3d model search engine.
Its like a Google, but only for 3d models.
3dmdb.com is webpage for 3d model database.
A filter for game-ready assets, and probably something equivalent for the website promo video and CAD users.
Soon we'll add filters by price/format and search by pictures and by topology/profile/shape.
What else is necessary for your opinion? Would be great to get any feedback from you.