Our Terms of Service and Privacy Policy have changed.

By continuing to use this site, you are agreeing to the new Privacy Policy and Terms of Service.

The United States
The United States

Fischer calls his new visualization set "See something or say something."

His U.S. map shows Twitter clusters along the East Coast and in California, against a photo-heavy mix throughout the scenic West. Dense urban areas outshine the more lightly populated Midwest.

Last updated July 12 2011: 11:02 AM ET
Join the Conversation