Open Educational Resources (OER) Sustainable Learning

MERLOT is a curated collection of free and open online teaching, learning, and faculty development services contributed and used by an international education community.

OER Commons provides a curated collection of textbooks and resources for studies in recreation.

OER Commons provides a curated collection of textbooks and resources for Tourism studies.

The BCcampus Open Education OER by Discipline Guide lists a wide range of open educational resources, including textbooks and courses, organized by discipline.

MIT offers open, online courses in SCUBA, Tennis, Weight Training, Archery, Fencing, Sailing, and Physical Intelligence.

Additional Recreational resources through the Leisure Activities subject.

This Digital Library portal contains the metadata of the YouTube Channels of the world's Top Universities.

The mission of the American Academy of Underwater Sciences (AAUS) is to advance and facilitate safe and productive scientific diving.

The largest association of recreational scuba divers in the world, DAN is supported by membership dues and donations. DAN's mission is to help divers in need of medical emergency assistance and to promote dive safety through research,education, products and diving services.

HathiTrust is a partnership of academic & research institutions, offering a collection of millions of titles digitized from libraries around the world.

Internet Archive is a non-profit library of millions of free books, movies, software, music, websites, and more.