Purdue Online Writing Lab: Visit Purdue University's OWL for help with writing, including grammar, style, and research and citation.
Microsoft Higher Education for Students: Microsoft's site offering free ways to learn how to do more with their products.
iTunes U: Download thousands of lectures on a wide variety of topics.
California Virtual Campus: Find online courses offered by colleges across California.
LibraryThing: A free website where you can make lists of books you've read or would like to read and connect with others around the world with similar interests. Find out who else is reading what you're reading and more.
OpenOffice: OpenOffice.org is a "free and open productivity suite" for word processing, spreadsheets, presentations, and more. It is a free alternative to similar software suites, and can read and save files using the formats of other common office programs.
Online Course Directory : a free and comprehensive resource that is a collection of open college courses featuring videos, audio lectures, and notes given by professors a Harvard, Princeton and MIT. Some of the courses include iPhone Application Development from Stanford and Cyber Humor from Oxford.