Your tutorials are one screenshot per page.... so I'd guess that your pv per visit is high but it's fluff traffic. No one is going to abandon the "slideshow" to

Your tutorials are one screenshot per page.... so I'd guess that your pv per visit is high but it's fluff traffic. No one is going to abandon the "slideshow" to click on ads. Your best points to put ads are at the end or near the begining of the process of viewing a tutorial. Consider taking the pv hit and putting the whole tutorial on one page. You say your audience is mostly people at home, learning. Maybe you can advertise for rentacoder (eg "make money working with Access!") or similar services. Think about what other computer-related problems someone in that situation might have, like anti-virus, certification, jobs. Hmm. reading back these options sound kind of sleazy. You could experiment with a tip jar as well. Don't write off display ads either -- give them an honest try for a couple of months.