Years ago, I declared to Darren Rowse (ProBlogger) that it was my intention to dominate the No-Niche Niche. (Now, go find where my friend Rasheed declared me the Queen of it!) Darren agreed that might just be MY niche. As a writer, I don't like to be pigeonholed into writing about a single topic. My expertise is in writing. There are a million places on the web to learn about that (one of my favorites is Purdue OWL - forget Grammarly, if you really care to learn English or writing as a skill, go to the OWL).