I usually let domains I never use expire but I figured, why not try to make some cash if possible... ForumLinkDirectory.com is one I want to get rid of, just the domain though, how much you think it could be worth, folks?
Very nice, I would like to submit, so let me know via PM when you get some more categories. Other than that very clean cut. Also keep some sort of free option. Directories are awesome when there is some sort of free option. Also just an idea, but if you added commenting for each link that would be very unusual and you might get users/visitors to stay longer.