The Principle of Social Proof states that one means we use to determine what is correct is to find out what other people think is correct. Many advertisers will inform us when a product or service is the "fastest growing", "producing the most results", or "largest-selling". All they need are enough people saying that the product or service is good enough which is often proof enough for the potential customer. It relieves the advertiser of the duty of having to convince us directly that the product is of value or any good. We've even seen it on charity telethons when they say; " Look at all the people who have decided to give. It MUST be the right thing to do!" What do you think about social proofing? Is it a great way to influence others to take action? Do you use it? Does it work for you?