I have a client that sells software to run on-line auctions. They are dabbling with the idea of running a cpa or pay per sale campaign. Even though they are very reputable guys, I am pushing them to a CPA market simply because it is easier for them to track, especially considering that the majority of their sales are closed over the course of 30 days with numerous telephone conversations.

I am wondering if anybody here has a site that provides content/products to businesses, charities or schools. (their primary markets) They do not condone any email stuff so it would be banner / content links.

I figure ABW is a good cross section of the affiliates out there and could give me a basis by which to help them figure out whether to do this or stick to just using their current PPC stuff.