EDITED - PLEASE READ:
There is nothing wrong with commercial information in collada.org if it is for a product that is part of the COLLADA ecosystem. Problem is that I browsed the web site advertized in this post, and did not see any reference to COLLADA or dae.
Therefore I consider the post as SPAM, and decided to remove it. COLLADA model repository, free or commercial are most welcome to post in this forum.
A quick google search finds that the following web sites have support for COLLADA models:
apologies to those not mentioned here. If you are listed or not, please feel free to post about you COLLADA products in the forum and wiki.