This is a really good list. I like it better than the article because it brings marketing and finance into the equation. I've been starting to wonder if my si

This is a really good list. I like it better than the article because it brings marketing and finance into the equation. I've been starting to wonder if my side projects are viable businesses or just hobbies. This list suggests that while they are technologically and financially viable, it will likely fail to generate real paying users.