Website from Southern California Cooperative that lets you search for books in Spanish, books in English about Latinos, search by levels, for bilingual books, and more.
A nice blog post from the 2018 Australian campaign for school libraries. Near the bottom, you will see a link to a page that includes a webinar that was very good, although there were technical difficulties.They had hoped to edit those out for the finished recording.
OASIS offers users worldwide the ability to search a range of OER materials including textbooks, courses and corresponding materials, interactive simulations, public domain books, audiobooks, modules, open access books, videos and podcasts on a variety of topics - from anthropology to zoology. OASIS also is the only tool that allows users to limit searches by creative commons licenses or by faculty review.