You already know how to install a blog.
You also know which plugins to use to make it functional and how to make it look great with a pretty professional WordPress theme.
You know which pages are must-haves on any blog.
AND you understand the benefits of blogging in terms of getting free traffic, as well as how to use PPC at the local level to reduce advertising costs.
So, why not make money using your knowledge to help businesses in your local area either set up a new blog, or improve an existing web site?