Aside from CB and the usual, i think that TICKETS are a goldmine! I just made several sites for sports/events tickets... Eg. ticketnetwork.com pays 12% for every sale - they are ALSO on CJ, but if you go right on their site and sign up there is even an option to get paid on your paypal. (This works also if you get declined on CJ) I think this is a very interesting niche. I just wish ticketnetwork would provide a RSS feed. They have options like a widget and links, and its VERY easy to use their links since you only need to append your affid to any link/event and you can link to whatever event. Since they dont provide RSS - its still easy to make some simple site and just open one of their links into a frame or something. Just my $0.02