RSS: more
I was explaining RSS to someone who had not heard of the tech / concept before and i was trying to explain the process of needing a 'reader' to subscribe to the feeds. My explanation was to suggest to consider a news reader much like a web based e-mail program that someone signs up for. The differences being:

a. the e-mail program allows you to send to anyone (positive)
b. the e-mail program allows anyone to send to you (inc. SPAM: negative)
c. the news readers requires you to then subscribe to the content you wish to receive, and gives you the control to unsubscribe at will

make sense ? missing anything ?