First of all thank you to those who replied to this thread.
So it would seem to me that if there was a forum created here called "Just Released" containing links that could be browsed by members an a window informing the members that the link would be transporting that member off site and that Renderosity is not responsible for off site content then that would suit your needs wouldn't it?
That would give you the choice of uploading your freebies here or advertising them in a place where they are centrally organized. You could also receive postings with feedback from the downloaders. The fact that the forums are searchable would also allow people to find those items if they are looking for them as well as a link to your website.
 I assure you that people looking for freebies will leave no stone unturned to find them.
They will also bookmark your site if they find lots of high quality items there.