One of the best ways to make money from a website is to review/recommend products and services that are relevant to your audience. Not only will your readers be predisposed toward trusting your recommendations, but search engines like Google also tend to rank reviews from authority blogs highly.
The result? You earn a constant stream of affiliate commissions from the products and services that you review.
In the long run, promoting products and services for a commission is probably the best way to build a sustainable income from creating online content. Instead of just taking a nominal fee for letting someone advertise on your blog, you can take a cut of the profits for yourself. The difference can be huge, especially if you stick with it for several years.
Do you see the opportunity here?