42nd way

Build a community. While some webmasters see lower returns from forum-type sites it's probably because they're using contextual programs like Adsense. One of the biggest webmaster communities (forum) is free to join and free toIf I could only get the right wheels... use though it's very busy, uses massive bandwidth, and costs its owner a bomb. Yet, he makes a very profitable income from organising conferences/tradeshows. His "community" ensures every one is a sell-out.