If you do not have regular internet access, try going to your local public library. They often provide computers for patrons to use to access the internet and classes on basic internet usage. Luckily, virtually every major newspaper's classified ads are available online in a searchable database. Dial up the website of the newspaper in the region or metropolitan area you are looking in and look there. It is much easier than simply scanning the daily paper.
Periodicals are another great resource for job listings.
Try to find periodicals that are specific to the industry or issue you are looking for work in. The basic idea is to talk to everyone you can think of about your job search and seek information and advice from them. Find some organizations that are involved in the work you want to do and call them up. Find a contact at the organization and see if you can meet with him or her. Generally, people are happy to talk to others about their work.