Regardless of the reasons for which you have created a blog, it can become a success only if you know how to promote it: in other words, you have to attract traffic. There are several ways to do so, depending on what you aim at with your blog; first of all, you need to get a look on the web and see what the competition is like. Blogging is something you learn and improve as you acquire more experience; actually we could say there are no boundaries related to the possibility to promote something online. The best help you can get is from domains related to yours, by the use of friendly links.