The International Relations and Security Network(ISN) run by the Centre for Security Studies and Conflict Research at the ETH Zurich, provides a very thorough list of links divded by topic and region at
http://www.isn.ethz.ch/pubs/ll/
The World Wide Web Virtual Library lists large numbers of links for various reseach topics at http://vlib.org
The American Political Science Association homepage for graduate students, Offers advice on career searches, dissertation writing, teaching, funding opportunities and more
Proquest Digital Dissertations database represents the work of authors from over 1,000 graduate schools and universities. They add 47,000 new dissertations and 12,000 new theses to the database each year.
American Political Science Association's list of links to potential employers. APSA also offers its own list of e-jobs, the cost of subscribing to the service is US$20
British International Studies Association lists upcoming events, calls for papers and job openings in Britain (note: most positions require you are a British citizen)
Canadian Political Science Association's links to Political Science departments in Canada. The individual departments will often list any current employment opportunities they have