The J.O.B.S. database is not as large as those of OCC and E-Span, but is certainly worth surfing through. CareerMosaic's Usenet Search allows you to search the multitude of national, regional, and local Usenet newsgroups for job postings. CareerMosaic's International Gateway provides access to jobs in Canada, the United Kingdom, Japan, Hong Kong, and France. CareerMosaic also serves as home to some of the best employer jobs pages on the Web. Keyword searching includes full Boolean capabilities.
Access is limited to participating schools, but most major universities participate.
Jobtrak will provide you with information on how to get your school online for free. It includes search capability by newspaper, job category, and keyword. Consider spending a few extra bucks and getting hooked up with a local ISP for the duration of your job search. And you can usually have all your mail forwarded to one central account, thus avoiding the need to check multiple accounts. Employers do not search for verbs, they search for nouns.