Yes, you can make money online. I run a few small niche websites. For instance, How to Convert PDF is a tiny site that has free videos on how to convert other types of documents into PDF format. It sells a piece of software called PDF Creator, and I make a few dollars every time someone buys from that site. I promoted the site using pay-per-click ads and it was profitable. Don't copy me directly, but do find the intersection of people needing help and a tool, ebook, or software program that will help them fix their problem. Then, create a website designed to get them to buy it!