Micro Persuasion doesn’t know how new this is, nor do I. But it is absolutely fascinating. One advantage of RSS was the avoidance of spam, because RSS feeders „pull“ the info when you want it to, and in addition, you can look at the preview without any graphics, ie ads. And now USAToday.com offers classified advertising feeds. So you can choose (!) to have advertising via your RSS tool.
Incredible. I wonder how many people opt in for that!