A new study came out recently showing that Twitter has reached 500 million users. It’s clear: everyone loves Twitter. This is great news for you, the Twitter marketer. Once you know where your audience is, you can target that audience with targeted marketing materials. That sounds good on paper, but you must tread carefully. The reason Twitter is so popular is because it is a community where people go to share thoughts and ideas. They don’t go to Twitter to be sold to and they certainly didn’t go to receive any spam. So how do you handle twitter marketing so that you can crack into this veritable cornucopia of prospects and customers? You do it by being social on the Twitter social network.