You have a chance to develop a reference with a nationally known name. Be an Expert Small business is looking for someone to help it sort out all of the new computer information. Be that person. Offer to speak to service groups on subjects that are familiar to you. You become a consultant instead of a salesperson.
Service organizations are often program poor.
The chairperson of the program committee will see you as a wonderful gift and you will get instant credibility. Just don't make the program a commercial for your services. Give them useful information and they will see the value of your knowledge. Give them a commercial and they will tune it out just like the do in front of the television. If you've developed software you've got one somewhere.