Some rely on advertisements, some are done by big companies, and some are done by the author with pure interest. 360 is the first answer. There are not many supplementary advertisements, but they have accumulated a lot of netizens, that is, channels used by rich netizens. Are you worried that no one will advertise in the future? Making money by click-through rate has a good development prospect. The supplementary answer is simple. If you want the sogou input method, don't you just go to the sogou website? Then the click rate of sogou website will increase, which is very beneficial for sogou, at least it can provide international rankings and realize brand value. The same is true of Storm Video. Storm Video has another feature, that is, when using his player, there will be advertisements on it, and the new version of Storm Video will also have advertising tips when it is suspended. In short, there is no free lunch in the world, and free software also has its own strategic route and marketing means, which is only an indirect answer. As I said just now, making money by clicking rate. Think about it, a well-known company will have immeasurable wealth. The development of network companies is to take this step first. If no one knows about your website, there is no need to talk about developing any business.