A few months ago, Raghu Srinivasan launched a website named Feedflix that analyzes your customized Netflix RSS feeds to track how you’re using your membership. The site can tell you things like how much you spend per DVD rental or the typical number of days that you hold onto your DVDs before sending them back for new ones.
While having someone automatically calculate this data is helpful to me, when I first used the service it didn?t really tell me anything new about how I use Netflix. Since I enjoy number crunching, I had already been tracking this info and know I’m spending about $3 for every DVD rental.