Eric Sink has a great post about how to get more people talking about your product. He says: a) find a very small group of people that share common interests and b) build a product that 100% of them will love.
Sounds simple enough. However, if you already have a product that you need to promote and it doesn't fit this bill, then you need to get a bit more creative. Think about empowering these individuals to find and connect with each other (and you) so they can maximize the use of the product and contribute to the next iteration.
