What suggestions do you have to promote free courses in technology and software use at a local library?

Free lunch/breakfast for each participant.

In your fliers/ads, are you properly highlighting how important computer skills are in getting a job?

I would definitely try to get into contact with local colleges. They tend to have newspapers in which you may be able to get a small ad in. Or you can post up fliers on various bulletin boards across campuses.

What outreach are you already doing? These programs could really help people who are using other publicly funded services like yours. For example, in my city there are programs to help foster kids transition to adulthood, job placement and training for the unemployed, one charity that works to arbitrate gang disputes and help the kids stay in school, and free vocational training for adults. If you contact people running other free services, they’d probably be glad to refer people to your classes. Call high schools and colleges about the resume writing class as well.