The reasoning behind this is simple. If your aren’t earning money, you’re not truly “in business.” Your blog is merely a hobby you do in your spare time. On the other hand, how much revenue you need to earn to be considered a success depends on the amount of money you need to survive and the expenses your business has. Basically, as long as you still have money leftover after paying your personal and business bills, you’re golden.
Perhaps the most popular network for placing these types of ads is Google AdSense. With this program, you do not need to be in direct contact with advertisers; you simply place the banner on your site, Google chooses ads relevant to your content, and your viewers click on the ads. There are countless similar programs available if you find that AdSense doesn’t work for you, such as Chitika, Infolinks, and Media.net.