I've floated an idea at http://aplawrence.com/Web/ideal_ad_network.html It's a little too long to post here, but the basic idea is that a Meta Ad Network could read our posts on the fly and return them formatted with appropriate and well performing ads. The result is what we'd show to our readers. Technically (other than possibly speed), this is simple enough to do. I think something like that could really be interesting to folks who don't want to spend time beocoming expert on ad placement/design. Comments?