It's true, you do need the gift of the gap and to sell anything you need to put yourself out there. Being as active as you can in a wide range of groups/forums seems to be a good way forward.
The more people you have the more you can promote meaning that if you have blog or website which has good traffic on it you can promote it there or if you have real followers on twitter facebook that's the easiest way to promote or join some groups which has same interest on what your promoting. There are tons of ways how to promote it if your really want to get high results you can make it to paid ads.
Good info. It's relatively easy to build up Twitter followers but I'm finding Facebook harder. If anyone has any tips on how to successfully to this I'd be interested to hear them.