Why not spread your traffic around to a bunch of different sites first? For example, promote 10 sites via rotating banners or similar method. This way you can see what converts best. Take the best converting site, push it to the top, and then experiment with 9 more sites. Keep repeating until you find the 10 programs that generate the most cash for you.
Good luck!
(If you like my suggestions, contact me at
http://www.2much.net/contact.php and I will show you an even better way).