100 Unbelievably Useful Reference Sites You've Never Heard Of

100 Unbelievably Useful Reference Sites You've Never Heard Of by Laura Milligan: "Beyond Google, Wikipedia and other generic reference sites, the Internet boasts a multitude of search engines, dictionaries, reference desks and databases that have organized and archived information for quick and easy searches. In this list, we've compiled just 100 of our favorites, for teachers, students, hypochondriacs, procrastinators, bookworms, sports nuts and more"