If you are an international student looking to work in the United States, below are resources that can guide you toward companies open to sponsoring visas for international students. Once you find a company of interest to you, look for them on LinkedIn and begin networking. (Some of the resources listed are also for foreign companies operating in the U.S.)
http://www.myvisajobs.com/Reports/
http://www.h1visajobs.com/ (This is a great resource, but you will need to pay for an account)
http://www.nypl.org/collections/articles-databases/directory-foreign-firms-operating-united-states
http://www.immihelp.com/h1b-sponsoring-companies-database/
http://www.flcdatacenter.com/CaseH1B.aspx
http://www.jobline.net/euusa1.htm
Articles and alternative resources to help you find companies that will hire international students:
http://money.cnn.com/magazines/fortune/bestcompanies/2009/full_list/
http://www.scholarshipforusa.com/2010/01/30-companies-that-hire-international-students/
Below you'll find a listing of resources and websites to assist all students in their international search:
American Institute for Foreign Study
Careerjet
CDS International
Cost of Living Index
Electronic Embassy
Escape Artist - Jobs Overseas
Foreign Policy Association
Global Careers
Indeed.com
Interbiznet
International Language Phrasebook
Overseas Jobs
PlanetRecruit
Teach English Abroad
University of Rochester-Internships in Europe
U.S. State Department -Travel advisories, alerts and warnings
CDS International-Internships and more
Education
Canadian Association of Educators and Employers
Council on International Educational Exchange
ESL Job Center
Institute of International Education
O-Hayo Sensei: International Teaching Opportunities in Japan
Friends of World Teaching
Teaching Jobs Overseas
Africa
Africa Online
Asia
Asian-Jobs
General Employment in Japan
Australia
Wages.com-Australia
CareerMosaic - Australia
Australia Careers Online
Australian Job Search
Canada
JobVolume
Neuvoo
Europe and the United Kingdom
Jobsite UK Recruitment Forum
Monster UK