I posted on the Commercial forum the other day about a book my wife recently bought me called "UN Marketing" by Scott Stratten. The more I get into it, it makes sense, and the author has a good sense of humour too. Marketing/Sales is my Achille's heel, and I would really recommend you get yourself a copy. Is less than $20 at Amazon. (Btw. the author despises the Yellow Pages, and refers to them as "paper spam")
From the back cover of the book: "Scott Stratten....speaks and consults globally on how businesses can engage better (or not at all) with their current and potential customer base using social media, viral marketing - and just plain old good conversation"