Each week, two women, an Italian in New York, and an American in London, collect, analyze then visualize a data set on a given topic. The visualization is drawn on a postcard and mailed across the pond.
For one week I collected data on my mail art habits - viewing, blogging, creating, sending, receiving, commenting. I don't know how these women are doing it every week for a year, as it was an exhausting week trying to log it all, and then it took me two weeks to turn it into a visual representation.
The link to Dear Data is also in the right column, near the bottom.
Here's my effort, that I sent to Eva. The dark grey circles and circle fragments represent time, and the lines are activities, with the colors representing different people or groups of people.