http://owl.english.purdue.edu/owl/ *If you prefer a searchable database to handouts, Purdue University's Online Writing Lab is an excellent resource. The "News" section provides interesting Youtubes and writing samples.
http://www.guardian.co.uk/books/series/howtowrite *A series from The Guardian, a British newspaper, featuring interviews with a variety of writers and their tips on working within a wide spectrum of genres (poetry, essay, short fiction, etc.)