Open Access: Tools and Apps

Browser extension providing open access content from over 50,000 publishers and repositories.

OpenStreetMap is a map of the world, created by people like you and free to use under an open license.

Free and fun interactive quizzes.

Explore more than 324 billion web pages saved over time.

NLS is a free braille and talking book library service for people with temporary or permanent low vision, blindness, or a physical disability that prevents them from reading or holding the printed page. Through a national network of cooperating libraries, NLS offers books the way you want them: in braille or audio formats, mailed to your door for free, or instantly downloadable.

Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. They also organize, maintain, and publish the geospatial baseline of the Nation's topography, natural landscape, built environment and more.

The NYPL Map Warper is a tool for digitally aligning ("rectifying") historical maps from the NYPL's collections to match today's precise maps. Visitors can browse already rectified maps or assist the NYPL by aligning a map. Play the video above to tour the site and learn how to rectify a map yourself. Everyone is welcome to participate!

Free, legal research articles delivered instantly or automatically requested from authors.

This is a FREE online and interactive resource for teachers, students, and brain enthusiasts alike, that provides the most beginner friendly and up to date (and constantly updating) atlas of the human brain. The purpose of this project is to provide readers with an opportunity to learn how their brain works step-by-step and without the fear of complex scientific jargon and the investment of time in reading hundreds of medical and psychology textbooks and peer-reviewed articles.