What should I teach micro-enterprises as a volunteer?

I'm starting a non-profit (possibly called "A Small Favor") that connects disadvantaged microenterprises with pro-bono work by web and design professionals.

The aim is to help them manage their digital brand and help them steer clear of an ugly and unusable website that would silently repel high-value customers.

In addition to providing volunteer branding and web development, I want to develop some easy steps people can take, like for instance, setting up their Google Local (and Yelp, etc.) accounts. Sometimes those are more important for discoverability than having a web presence at all.

I'm working with the Seattle-based Washington Community Alliance for Self Help: http://washingtoncash.org and they have agreed to supply me with contact to some of the micro-enterprises who have gone through their program.

I am hoping to crowdsource this effort a little. I now have my first few businesses. What can I do for them, or teach them to do that maximizes my time and the time of my other volunteers?