Know Your Friends, Analyze Your Friends, Chart Your Friends !

Step 1: Click into this link
http://apps.facebook.com/chadotfm/
Install it to get a dashboard of your friends.
Step 2: Select "My Chart"， "Friends Charts"
See how many male friends you have,
how many single female you have!
Step 3: Select a slice of any Chart,
your friends photo will show up in Gallery mode.
Step 4: Ask your friends to install it,
so that they can give you permission to see
the dashboard of their friends.