Funny that this topic came up. Just wrapped a lunch with the 2 owners of a SLC based affiliate tracking company at
www.fusionquest.com
I'm pleased with the results that they've been providing for a couple of my clients that I recently set up. Keeping to their promise since 2000, they still are the only affiliate software package that assist in SERPS because link popularity is not affected like the other programs. Other programs involve a query string. Example:
http://domain.com/?this_link_will_not_give_me_serps
The program is very robust and very easy to install. I hope that I didn't just give my secret away to my clients' competitors for out ranking them as well as saving them money (30% payouts to commission junction on sales and monthly fees.) Fusion Quest is just $595 one time and lifetime support. I'm not a sponsor to them. They just took me out to lunch because I'm a lovable, harmless little fuzz ball as Rush Limbaugh likes to say and to talk business with my business partner. Enuf said.