Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The width of sector indicates the volume of page likes for fan page. The color of sector implies the diversity of user interaction, namely interaction entropy, on fan pages. In each group, fan pages are sorted in descending order in term of interaction entropy.
