What are the rules of common online marketing strategies:

What are the rules of common online marketing strategies: First, the website's free strategy. In fact, the user's psychology is very strange. Why do you say this? If a mall holds a discount or gives something free, even if the value of the given thing is not high, people are willing to take 10 minutes or more to queue up to get it. Why does this happen? Because the value of the given product itself is not high, But because giving something away for free is a very tempting thing, so many people are willing to take this time to get it.