Targeting an audience can often feel like finding a needle in a haystack—or being a Republican in Portland.It takes work. A lot of work. But the fact is, if you aren’t catering to and growing a specific market, you are losing potential business.If you have an established company, you probably already know that you need to identify a target market for your products or services—and if you’re profitable, then you’ve probably already done the research legwork.However, not everyone takes the time to consider the whys behind the whats. Identifying a target market alone will not increase the effectiveness of your marketing. Here are four reasons building your audience builds your business.