Im just curious as to how many sitewide link exchanges you have to relevant sites? Lets say you are a PR5 site and you are only linking to other PR5 relevant sites in reciprocals. Can you have 100 or should you limit at 5? Remember this is sitewide.
I don't like link exchanges personally...do directory and article submissions and some link bait and you're good to go. Wouldn't hurt either to buy a couple of links here and there.
I dont actually have link exchanged but I made a couple vbulletin skins that are being used and include links back to my site.
How does that work? Successful? I was thinking about that. Make some wordpress skins.. vbulletin skins..
I wouldn't recommend any type of reciprocal linking. Just let them happen organically, link exchanges are a bad idea, you will be better off in the long run.