There is no need to choose the top 20 pop songs for your shows. Determine who your audience will be defined by specific demographics such as age, gender, education, geographic reach, ethic competition etc. Let's say the audience that you are a beach bum at heart and could not be anything better to perform a radio broadcasting show such as Targeting, surfers, sun bathers, fisherman, bike riders, swimmers, roller skaters, Southern California, and the other beach goers.
The content and the development of audience go hand in hand. The best shows liked by audience are surf condition, weather reports, and reports of beach traffics. You can also high light the volley ball matches on beach sides, the paddle tennis games, race of the sail boats, the competition of body building etc. Analyze who are going to advertise your show. Create a web site for your show. This is the easiest way to reach very near to the audience because there are many users who visit the search engine per day for their needs. There are many opportunities for broadcasting found online such as Live 365 and many more. This is a great job to do and enjoy.