E-Media Tidbits: The Holy Grail: Trackable RSS
«So far, you can’t really track the number of users who access your RSS feed. Feed reader software and services poll feeds at a wide range of intervals — which could mean that 1,000 hits to your feed page in a day could represent only 100 subscribers to the feed, if their readers were polling hourly on average.»
Clickz: IMN introduces trackable RSS
Clickz: Is Ad-Supported RSS the Next Big Thing?