First of all, I would recommend you spend a bit of time on design. The site is blinding. Maybe tone down your link colors a bit, or don't make them so huge.

I can't say I really understand the problem you are trying to solve. Why would I use mostrecent rather than delicious or squidoo or something else similar. It seems there is a ton of manual tasks required, I manually create links, manually drag them around, etc.

Your intro clip shows functionality (which is why it is under help), but you really need to explain why I would create these links. Why am I an editor, why I am doing this.

Tungle had a great demo (not sure if it is still around), and there was a group that is doing online merging of office and google docs, they also had a great demo video.

Look around and see what you can come up with.

This might be a great idea (it is a great domain name), but you haven't spelled out clearly enough what I would use it for/why it needs to exist.