Classic Literature Library - find full-text classic literary works in the public domain
Project Gutenberg - access over 50K full text eBooks in the public domain
Classical Literature - find full text works of prose, poetry, and drama from classical antiquity
PublicLiterature.org - access thousands of class books in the public domain
Favorite Poem Project - This page contains classic and modern American poems in its written form along with a video performance.
Books, essays and more
Cory Doctorow essays, articles, novels, etc. all under Creative Commons license.
SAYLOR ACADEMY (compilation of resources)
ENGL000: Pre-college English
Open Course Library
ENG 9Y – Pre-College English
University of Minnesota
About Writing: A Guide
CSU ISBN search with a few vocabulary results