If running ads is your only way to earn revenue from your website, spending money to build traffic on your website might no be viable option, but if you are selling products and services, running ads might give you a good return on investment.True indeed. However, if making money from the site is your main concern, you must make sure that your website and web content must get ranked high. Spending money on ads to drive traffic so that you can generate revenue is not a viable option.