SEVEN MARKETING BLUNDERS AND HOW YOU CAN AVOID THEM by Craig Huey BLUNDER #1: Using 'image' advertising instead of direct-response advertising. This is the number-one mistake made ...

It's amazing to think that the first commercial radio station didn't go on the air until 1920 -- KDKA in Pittsburgh for trivia buffs. From that modest beginning, radio has grown to be a ubiquitous presence in our lives.

It wakes you up in the morning and gives you the news. You get in the car, and you probably turn on the radio. It goes to the beach, the ballpark, and the office. It gives everything from "heavy metal" to talk shows to Bach.