When your readers hear the word "viral," they might cringe. "Viral" sounds sinister. But viral marketing (the term was coined about 15 years ago) is now recognized as one of the most powerful promotional tools in today's high-tech world. Viral marketing is the 21st century's version of old-fashioned word-of-mouth. When it works, viral marketing can bring a message to thousands -- or hundreds of thousands -- of people at little cost. This engaging feature explains what viral marketing is all about, and offers readers tips they can use to make their names and products reach bigger audiences than they might believe possible. 920 words. [Feature 1010]