The other problem is that for a newsletter to succeed you must be: * A good enough writer, for people to want to read what you write * Have identified a niche

The other problem is that for a newsletter to succeed you must be: * A good enough writer, for people to want to read what you write * Have identified a niche to write about * Be sufficiently skilled in that niche that you can write as an expert, and provide a genuine expert opinion which is worth the money. Most writers will succeed at the first, will try to get the second, and then fall down on the third. You can't just be a writer - you need to be a writer with something special to offer.