Blogs are niche websites for people to post knowledge or content for viewers to read, comment on, and share. The people who run blogs are called bloggers, and they generally do so to share information or create content for an audience. This is also a great way to make a lot of money - bloggers can earn over ne hundred thousand dollars per year! If they get a large enough audience, this means that there are thousands of people viewing their blog in a certain amount of time. This is called "blog traffic". If the site has a lot of traffic, companies will pay bloggers to put ads on their blogs. They get a certain amount of money for every person who clicks on an ad.