Why do we need narrowcasting?

Narrowcasting allows you to customize your message for a specific group of people. You don't have to be as vague with your ads because you are transmitting your message to people who may already have a connection to your brand or have an interest in your services.

What is an example of narrowcasting?

Perhaps the best example of narrowcasting are electronic mailing lists where messages are sent only to individuals who subscribe to the list. Narrowcasting is also sometimes applied to podcasting, since the audience for a podcast is often specific and sharply defined.