Don't have it but recently read an article stating that they keep track of everything you do - every website you visit and every channel you watch. Best to read the privacy policy first if this matters to you.
Hmmm....I can't believe that would pass muster with groups like the ACLU around. Technically, any ISP can keep track of every packet that goes back and forth between your modem and their destinations and content...not to mention echelon.