Brainbench.com: Online computer skills tests. Some free, some $$. Pass the tests and get impressive-looking certificates to prove how much you know!
Colby Writer's Center : get help with your writing.
Freeskills.com: tutorials and tests on IT skills; job postings.
ElementK: online computer skills training. Not free, but not too expensive for student licenses.
Self-Paced Training available at Colby
VTC: another online training option.Over 25,000 titles for just $25 a month.
Mac/WindowsAcademy: good source for computer training videos and CDs.