I really like Facebook. I use it every day and choose to store lots of personal information on their servers. This is not anti-Facebook project — it's just an informative web site about what data they store and what a tech company like Facebook can infer from that data.
File an issue or a pull request if you want to improve the content.
Basically, do whatever you want with everything except the illustration which I bought from iStockphoto. Check the LICENSE file for details.