I was wondering how many are using Pheedo and whether they have had much success with placing ads in their RSS feeds. I noticed Feedburner can also serve ads through RSS but it looks like one of those "don't call us, we'll call you" sort of things, almost like the Adsense for Feeds beta. If you don't use Pheedo but still have ads in your RSS, who do you use and how do you feel about it? Thanks!!