If you had a few hosting related domains that were getting about 100 hits a day, what route would you take in developing the sites, rather than generating the PPC income from the domains being parked? Start a hosting company? Free host? Hosting directory? Hosting forums?
A hosting affiliate site. Most hosts will pay $60-$100+/customer depending on the host and the plan they sign up for. Have reviews of the hosts and all that stuff. It is a great idea. Let me know how it goes and feel free to share some of the profit with me.
I'll second the notion for a hosting affilate site. Unless of course you actually want to run a webhosting company...