Help with user submitted links

I am trying to allow users to submit links to other websites without using the the comments section. I have tried integrating wordpress link directory, it is a great plugin but I can’t seem to get the desired result.

If I write a post about apples I would like users to be able to sumbmit a link to their own site about apples and then display the links in a list.

Has anyone found a plugin or hack that would make this possible.

Thanks
Matt