So…. your good friend recommends a product that she purchased and is having good luck with. You purchase the product without hesitation because you trust her opinion. Has this ever happened to you? If so, you are the beneficiary of word-of-mouth advertising. This technique works well online as well. Here, it is called viral marketing. Marketing that is ignited by the spread of your product through “hyper” social channels online. Free Reports re a great way to get your own viral campaigns up and running fast.