I signed up for linkmetro.com
two days ago, and I have already swapped links with 35 related websites.
I have about 90 pending, but people are not alerted via email about new link swap requests. But I should have them respond whenever they log back in.
I gotta say its a pretty easy to use site, all you do is get code for someone elses links, post it on your site, then tell them where the link is, they verify, then ad yours.
Better than the dozens of other link partner sites I have tried to use.