Many marketers have a difficult time figuring out who their target audience is. Unless you can do this successfully, your business is doomed to certain failure.
If you're having a hard time figuring out who your target audience is, the following information should help you:
Know Thy Competition. The easiest way to zero in on your target audience is to first know who your competition is. For example, if you sell computer products or services, you should subscribe to computer magazines like SmartComputer.com, PCWorld.com, and ComputerWorld.com.
Study those magazines and pay close attention to those companies selling products or services similar to yours. From there you need to determine the needs of your target audience and how you can serve them better than your competitors.
You can use this process, regardless of what you're selling. First figure out your competition, and then study the trade magazines of that particular industry.
Of course, depending on what your selling, figuring out your target audience can be a lot more involved. For example, figuring out deomgraphics, etc.
This basic information is not intended to be a "be all end all" solution. However, it's more than enough to get you started in the right direction.
Dale King