You should first change your mindset about what you currently have, and don't have:

- You have a brand
- You have an audience
- You have a new customer acquisition channel

- You do not have a product

A business needs a product to sell. Adding a wiki is not adding a product, it's only increase the customer acquisition channel.... something you probably don;t need any more of yet.

What you need to do is create a single simple product, and then use your blog and brand as a channel to that product.

If you're really keen on writing, it could be an ebook or training course (adding videos to your case makes a huge difference). There are many resources online specific to one of these avenues.

I know a lot of friends and fellow entrepreneurs who make full time incomes from books, courses and other info products that are 100% powered from their blog. Happy to dive deeper on a call.