If you are trying to locate family and friends after the impact of a storm, there are several government and non-governmental resources

Governmental Agencies

Florida Division of Emergency Management
Ensure that Florida is prepared to respond to emergencies, recover from them, and mitigate against their impacts.

National Hurricane Center
Provides the most up-to-date information on Hurricane tracking for the United States

Federal Emergency Management Agency

FEMA for Kids
Herman, the spokescrab, teaches kids how to be prepared for disasters and prevent disaster damage. They can also learn what causes disasters, play games, read stories and become a Disaster Action Kid.
U.S. Department of Homeland Security is helping you get ready for the next disaster.

Civilian Agencies

Weather Underground
One-stop resource for all of your weather related needs.