AJB might be more useful to you. They're affiliated with each state's unemployment/welfare/FS agencies. AJB WANTS to get you employed so that you DON'T have to ask for 'help' of the local Social Services.
Also, a lot of times, they have jobs that are NOT offered to the 'general public'.(by doing that, the employer gets a tax break or something, when they hire someone)
Thanks for the tip. Sounds like a very good resource.