As an internet marketer or community manager, you have the power to turn customers into one of your strongest, most cost-effective marketing teams. By creating great experiences for customers during good times and bad, they'll share their successes and demonstrate the value you've given them to a broader audience, much to the delight of your marketing and customer service teams. I've included examples of companies that do a great job of this already, including Mailchimp, Think Geek, and Fab.com.