Have in-depth knowledge in your niche? Package it up into an ebook and sell it on your blog. I'd generally advise against selling it (at least exclusively) on Amazon or Kobo, as you'll probably be able to charge much less. If you've already built up a solid audience, you can probably change anywhere from $5 for a very short one, all the way up to $39+.
Post your article links on social media and blog directories. Get traffic to your site with frequent updates on Twitter, Facebook, and other social media sites. Find blogging communities that match your readership and post links to relevant articles on their comments or forums. This helps in getting traffic to your site as well as raising your search engine rankings.
If you’ve spent a lot of time writing that week and just need a break from working on a post, it may be a productive way to spend an hour or two but I personally think your time could be better spent elsewhere. (This isn’t to say that you can’t find success utilizing this method, I just don’t see many/any people doing it and reporting back that it’s really helped them).
In my opinion, the most important way to let yourself know is through networking. As an IT Professional for over 20 years (way before social media sites) I’d seen how human interaction has evolved, but the basics remain the same. Everyone wants to get known and recognized and if you want to get yourself or your product/services out there, you have to network with others respectfully and also help others. Networking is not a one-way street, you have to contribute by collaborating with others. This is how you get to promote yourself or a product/service.
I will quibble on one point though, your comment about BBT getting 13,000 subscribers before launching even though you “had nothing but a coming soon page and an invitation to join our email list.” As I recall, you also had a freakin’ awesome video on that page as well that just made people yearn to give you their email address, even without knowing a thing about BBT. So that didn’t hurt, either. ; )
My understanding is that you have to subscribe/pay for the business version of Word Press in order to use any of the monetizing functions. I think you should clearly state this in this article at the beginning. I think there is a degree of bait and switch here if people are just signing up for the free subscription and then finding out they have to pay for a subscription to make money. I am ok with that, it just needs to be stated up front everywhere.
Write content. I like to write an article from beginning to end with no breaks. It may take me an hour to write an article or I may be at it all day. Sometimes, content does span a few days, but for the most part, I like to finish a piece of content in one sitting. I then hand over the content to my editor to fix anything from grammar, punctuation, to the general flow of the article. The only thing she doesn't edit is my monthly income report.