A type of blogging, wherein you have a selected description or topic of your blog based on your skills, inclination and interest. A blog deals a certain topic, which you are knowledgeable with and can run that blog without changing topics, way out from the description or selected topic you chose when you started your blog. In other words, a certain topic that you can sustain and stick with it all the time, eg. gadgets, so you deal with gadgets all the time. Niche blogging is so advantageous when applying for google adsense and in earning dollars, compared to a blog, which jumps from a certain topic to different topics. So, if you go blogging to earn dollars, make sure you create a niche blog.