If you are looking for eBook sources for your students, here are some suggestions. Most of them are free.
Light literature (such as Alice in Wonderland, Peter Pan, or Aesop’s Fables), heavy literature (such as Moby Dick or Paradise Lost), and references (such as almanacs, encyclopedias, or dictionaries) in downloadable formats
Awesome Library organizes the Web with 37,000 carefully reviewed resources, including the top 5 percent in education
Directory of sources for listing over 1 million free books on the Web
With over a third of a million full-text works of poetry, prose and drama in English, together with the definitive online criticism and reference library, Literature Online is the world’s largest cross-searchable database of literature and criticism.
Internet Public Library links to picture books, short stories, poetry, myths, fables, magazines, and information about authors
Bookshare™ provides the world’s largest online library of accessible reading materials for people with print disabilities.
Internet resources related to books for children and young adults