If you are looking to discover ways to monetize your web site, the tried and true method has been affiliate marketing - but it is not an easy job and while some people make a little part-time money as an affiliate - there are some people who are making 10s or 100s of thousands of dollars each month.
Affiliate Marketing Forums - Revenue Source is a great resource. Using forums to find out what is working and keep grounded with other people in the space is important. You will never learn everything or be able to test everything. Dveloping a group or a solid community can help spread the time restraints and get much more accomplished.