Every day, millions of customers, which might even include you, are giving their opinions, sharing their complaints and suggesting competitors in online networks, forums, communities, and blogs. Are you listening and reacting to them in a manner to keep customers happy or are you paying the price of losing customers and acquiring new ones? The general rule is that acquiring new customers costs 4 to 6 times more in marketing dollars than keeping them, so the solution to maintaining customers has never been easier with social media. Here is what you need to do in the social media world: