Where are people going to get information, especially about local events and news? Generally, for traffic and weather, T.V. is still the most frequent place. However, when it comes to news and events, now MORE people are going online.
According to Alexa (A leader in web analysis) these are the most visited websites in the world, and they are free.
If you aren’t using these platforms to reach new audiences, you are missing out on a very inexpensive way to market your product, company, or cause.