Whether you are looking to make a sustainable income or some fast cash, there are plenty of ways to earn extra money with the wide-ranging opportunities offered online. However, it is necessary to be disciplined in your approach to making money. Also, it can help to enter an area that interests you to help stay focused and interested. Here are four ways to make money online: Start a blog One of the most sustainable and easiest options to make money online is by starting a blog. A well planned blog that is based on the right niche with plenty of useful and unique content that targets a specific audience has the potential to make passive income over the long-term. Many think the process of setting up a blog is difficult, but in fact the learning curve isn't too bad. There are several website building tools available to make creating an online presence quite straightforward. In the process of building a blog, you need to think about the offers or ways to make money, such as selling e-...