I have created some graphs that show my social activity. Most of these are using the Google Visualizations API.
This timeline is amazing. First off, that is a lot of activity. For some reason, February/March of 2008 I was really active. No idea why.
This will change over time. I imagine that we will see more services jump in here. I should put flickr and delicious in next.
I calculated this VERY unscientifically. 1 tweet is equal to 1.5 minute. 1 google reader share is 2 minutes. Checking into a venue with foursquare is 30 seconds. Time is money!
I found this to be really funny. About one year of my life has been spent doing this hilarious stuff.
Let me know if there are any other charts you would like to see.