europeforvisitors - 3:44 pm on Feb 21, 2008 (gmt 0)
I've learned through trial and error what works (and what doesn't work) on my site. AdSense works adequately, display ads now work even better, and the right affiliate programs work best of all. The tricky part has been identifying the "right" affiliate programs (i.e., the ones that will generate the most revenue and that won't stiff you when it's time to get paid). There's no substitute for real-life experience with topics, traffic, and revenue sources in your niche, which you can acquire only by making a commitment to building and maintaining a site over the long haul.