Reddit mentions of Professional Genealogy: A Manual for Researchers, Writers, Editors, Lecturers, and Librarians

Fantastic website update--you're definitely moving in the right direction.

Some other off the cuff suggestions I have:

be even more transparent about the resources you have access to, or essentially, what makes you unique? From how you present yourself, it sounds like the bulk of your available research is on Ancestry or Familysearch (which is fine!). If so, why should a client choose you rather than just doing it herself? (This would be a good time to emphasize that history degree).

Have you given thought to how you will provide clients with citations/images of documents? If you're using online sources, you will need to consider their TOS.

For repository lists, also consider area colleges/universities, historical societies, genealogy societies, and even public libraries.

And while you're waiting for clients, purchase or ILL this book, as it is a helpful resource to understanding how a professional genealogist operates.