Joule is a way of keeping track of who's reading your stuff.
Lots of sites allow you to make a list of people you want to follow (sometimes called a friends list, or a watch list). Sometimes they also let you see who has you on their friends list. But wouldn't it be nifty if you could see when people start and stop reading you, like this?
That's what Joule is for.
Joule has been around for five years and has tens of thousands of happy users. This community is for discussion amongst these users, and for release announcements.