WolframAlpha has launched its Personal Analytics for Facebook [wolframalpha.com] functionality. Simply type "facebook report" into the query box, authorize the app, and view the extensive analysis of your social network. The report shows you details about when you post, what types of things you post, the apps you use, who comments the most on your posts, your most popular images, and the structure of your friend network. You can easily share or embed sections of your report.
The report is incredibly detailed. You can drill down further into most sections. Any item of significance such as names and dates can be clicked to search for more information. It was interesting to find out that I was born under a waning crescent moon (is there anything Stephen Wolfram doesn't know?!). I don't use Facebook much, but this service makes Facebook fun again.