Universities in the United States:

US Universities (Yahoo), includes a list of public and private school sorted by state.

US Universities in an alphabetical listing by University

US Universities (Excite)

ULinks contains of college and universities are alphabetical by state

US Community Colleges
Universities in Canada:

Canadian Universities (Yahoo)

Canadian Universities (University of Waterloo)

Study in Canada

Ontario Universities Application Center contains applications for Ontario schools
Universities in the United Kingdom:

UK Universities (Yahoo)

UK University information
University and College Admission Service (UCAS):

Apply Online
Universities Worldwide:

International Institutes: (Yahoo)
University World: Find Universities & Colleges