When it comes to content for your blog there is no specific rule that says what you can and cannot blog about. The main difference between a profitable blog and a non-profitable blog is not WHAT the blog is about, but HOW the blog is written. Many of us tend to get stuck on the logistics of what to blog about when the most important thing is that you do blog. Remember those “great” bloggers didn’t become great over night. They took it one day at a time.