Hi @kalenjordan. Have you read Traction? It’s a useful collection of various channels and a framework for selecting one or more channels. Has a 5-step process: brainstorm, rank, prioritise, test, focus on what works. Of course, one point is that you do exactly what you’re doing now, which is see what’s worked for others
http://www.amazon.com/Traction-Startup-Guide-Getting-Customers-ebook/dp/B00N06Y2DW/
I got pretty good at Adwords back in the day, which helped. I haven’t used it in anger lately so rather listen to @craigvn!
I also mailed a few bloggers which got my traffic kickstarted. And tried, in my limited ability, to refine my SEO somewhat. I was never an enthusiastic writer though. One thing that brought me content was getting customers who were asking for discounts to do write-ups of how they used the app, and add a few screenshots of their setup. I specifically said not to sugar-coat it and just write what their process was. I’d add the pages to the site and would have various natural-language (rather than salesey) pages, including foreign languages.