This site has over 2000 classic texts in full online. There are countless short stories and poetry as well. Perfect for lessons on short stories, poetry, or a quick look into a chapter or two of a fiction or nonfiction work. It also has study guides, author biographies, reference books, interviews, religious texts, etc.
Will need a username and password, but an excellent source and supplemental tool for every unit. Not only great for this particular text book, but applicable for several of their editions and grade levels.
CrashCourse is a YouTube Channel where they are constantly uploading interesting videos packed full of facts for world history, US history, literature, chemistry, ecology, and biology!
This is the jackpot site for all supplemental resources about authors, their biographies, & various works. You can browse by author, nationality, or literary period. Not just limited to English/Literature teacher either, anyone studying any author can use this site!
This website has a lot of novels and short stories available. This could be a really valuable resource in a school that might not be able to afford as many books.
This website is a home for links to websites that can help with every aspect of high school English. There are links to help with grammar, literature, book reports, study guides, etc.
This website contains valuable and interesting information on all types of mythologies from cultures around the world. It could be of use in English or history classes.
This is a web page from a useful site on integrating technology into the classroom. This site has 5 different examples of technology and links to examples and resources to use them.