telephoneconferencing.com-how should i monetize it

There are so many conference companies out there, i was going to take the site a different route. I was going to have a blog, compare the free services that are available and if they sign up through our portal for one of the services they will be entered to win a Ipad or something, then most of these conference sites have a affiliate page where if we refer them to their site, we get commission.

Thoughts?