Internet Marketing Business Forum

Where can I find people and websites who want to do a free link exchange? My forum is http://www.notebookinhand.com
I'm looking for people who are *not* too similar to us- or neither side would benefit- we'd both already have what we want. However writer's or artists websites without a forum would be fine, and unrelated but complementary forums would be fine too. Throw whatever you have at me.

What I'd be after is... a link somewhere on your site. If it's somewhere on your forum, a links section on the forum would be fine.
In return I'd create a thread in my publicly viewable links forum, and if you want, in the 'affliate links' in the sidebar as well. The affiliate links in the sidebar would stay up for a negotiated amount of time, not forever.

Or do you know of any forums that allow links in signatures, that I could possibly join? (I'd only join ones I was genuinely interested in, I'm not into spamming forums)