Most micro small businesses need the most help when it comes to networking. They won't have a designated server yet, but they will need some help with their peer-to-peer network. You should also be familiar with the inexpensive routers that share a broadband connection among a whole office and have the little built in 10/100 switch.
The other primary concern for micro small businesses is virus protection. You should be able to work with anti-virus applications and personal firewalls so that you can help micro small business owners protect their data.
Learn more about what you'll need to know as an IT consultant for micro businesses in the full article (link above).
Added by Computer Consulting 101 Professional Kit