I already blogged about onlife, this program now called Slife that tracks and help you to visualizes traces of your interaction with Mac applications. There is now a "social component" called Slifeshare:

A Slifeshare is an online space where you share your digital life activities such as browsing the web and listening to music with your friends, family or anyone you care about. It is a whole new way of staying in touch, finding out which sites, videos and music are popular with your friends, meeting new people and discovering great new stuff online. Take it for a spin, it's free, easy to set-up and quite fu

The "how page" is quite complete and might scare to death any people puzzled by how technologies led us to a transparent society (a la Rousseau). Look at the webpage that is created with the slife information:

Why do I blog this? Slife was already an interesting application, in terms of how the history of interaction is shown to the user. This social feature add another component: using Jyri's terminology (watch his video, great insights), it takes people's interaction with various applications as a "social object". This means that designers assume that a sociability will grow out of the interaction patterns (in a similar way to the sociability of Flickr is based on sharing pictures).