Niche blogs are blogs which exclusively focus on a specific subsection of a general and usually popular topic. For example, if you are blogging about cars, then that’s not a niche blogging. Blogging about Audi is a niche blogging. But if your blog is only about Audi A3, then you are going even deeper into niche blogging.
If someday you want to monetize your blog , the niche blogging is the best solution. Why? Because when you focusing on one keyword you’ll be ranked better in search engines and you’ll have only targeted visitors.
Matt Jones writes a very interesting article about niche blogging. There you can find 3 strategies on how to develop a niche blog. It’s a very good article and you should read it if you want to start a niche blog.
Matt has quite a talent for writing , you expressed his talents in only a few words , way to go