How People Learn About Their Community
Now that you have given some thought to how you are currently communicating with your audiences, take a look at what others are reporting.

How people learn about their community. This is a graphic from PewResearchInteractive which details the sources people rely on most for information.
Pew Research Center
http://pewresearch.org/docs/?DocID=140
You might want to take a few minutes to visit this site to better understand who is looking where for information related to a variety of topics ranging from community events to school information to local government and local businesses.