Pheedo, the company with the ad delivery platform for RSS publishers has some interesting RSS usage patterns on their blog.
RSS readers are most active on Tuesday – Saturday is the least active
Click through rates (CTR) vary by as much as 70 percent between Tuesday and Saturday
Late night readers click through more than morning scanners
Bloglines is the top aggregator followed by Firefox, Thunderbird, NewsGator, and Sharpreader
These 5 aggregators account for 70 percent of Pheedo managed feeds
