Arboretum Systems has released a new version of HyperEngine-AV as freeware which is a pretty awesome thing.
I just downloaded it, and am checking it out. I'm more interested in audio tracks than the video side, but if I like it I'll post more.
A faculty member at work tipped me off to baseportal, a free service (yes, they also charge money for premium services.
It's pretty cool. You can set up a database and use it. I'm not sure how easy it is to integrate into another webpage though.
UPDATE: Oh, and I broke my database pretty easily. And I don't know how to get it back. Hmmm.