learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. khan academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

get step-by-step textbook solutions or ask homework questions to get expert answers, plus textbook rentals, writing & citation help, exam prep and more.

learnoutloud.com is your one-stop destination for audio and video learning. browse over 50,000 educational audio books, podcasts, and videos.

oer commons is a dynamic digital library and network. explore open education resources and join our network of educators dedicated to curriculum improvement.

knewton puts achievement within reach for everyone with adaptive technologies and products that deliver personalized and lasting learning experiences.

over 300 pearson clinical and classroom assessments products such as basc-3, aimsweb and q-global as well as large-scale and graduate admissions tests.

edsurge is an independent education technology information resource and community. find k12 and highered edtech news, research, jobs, products and events.

quizlet makes simple learning tools that let you study anything. start learning today with flashcards, games and learning tools — all for free.

find free online courses, lectures, and videos from the best colleges in the country. take online classes from schools like yale, mit and stanford.