I recommend sending an email to your Regional Director, Senior Mentor and AmeriCorps VISTA. You may not have the last two in your area but the Regional Director will have a great wealth of information. They can help connect you to people who want to mentor or volunteer in your area or can send a message to see if anyone wants to help. Also you could try approaching local Universities and businesses with technical experience to see if they may have anyone who would like to mentor.
http://www3.usfirst.org/regional-contacts is an easy way to look up contacts in your area if you are unsure of who they are.