How does this work?
After you log in, this page gets a list of all of your facebook friends. For each of your friends, it then obtains a list of mutual friends (i.e., common to you and the friend). This data is converted to the DOT language.
Note that this page will display a popup at first to log into Facebook, if nothing seems to be happening try disabling your popup blocker.
How can I turn this into an image?
The DOT file can be turned into an image using the open source
Graphviz software. On a Unix system the
command you use will be something like
dot -Tpng .
Graphviz provides six different tools. Which one should I use?
You can look at examples of the output of each of the tools below. Note that
neato becomes very slow if the number of friends you have on
Facebook is much more than 100. Note that the names have been hidden in the
images below, and because of this, in some case, the output isn't completely
representative of what you might get. In general, though, you won't go wrong
None of your data can be viewed by me unless you choose to send it to me. All of the processing is done on the browser and no data is sent to my server, as can be verified by viewing the source of this page.