Hey, I just came across this software that is just amazingly insane. This whole time I thought using software to get inbound links didn't work, or that search engines like Google didn't "approve" of them, but its not true AT ALL. It got me listed on Google in 2 weeks with a Page Rank of 4....not bad for a site I just launched a month ago. I tried a few other SEO software but they suck. I found it by doing a Google search for "Pay Per Link". I think this technology is new, I heard of pay per click, but not pay per link. Well my experience was stellar, just thought I'd tell you fellow SEO'ers.
If you are looking for a free SEO software product then you should have a look at the free version of WEB CEO. I think it's one of the best out there.
Web ceo is a good tool. And to manage your link exchanges the free version of linkmachine will do great job.