Suppose you find a website or android application that has copied content from your website, or someone is selling counterfeit merchandise on eBay. What can you do about it? If the competing website, vendor, or application is infringing your intellectual property, you could sue them, of course.
But there is potentially a much simpler inexpensive course of action. You can notify Google, eBay, or other Internet service providers that your intellectual property is being infringed and ask that they “take down” the infringing content. Service providers will oblige and take down the content if they agree that your rights are being violated.