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7 Excellent Free Online Writing Courses to Improve Your Web Writing Skills - great links, I'm already making my way through the Purdue OWL writing excercises
SIX FREE WRITING PODCASTS ---discover hundreds of free podcasts focused entirely on writing and its various subgenres. No matter what kind of writer you are, something is bound to pique your interest. All you need is about 15 minutes and an audio device.