Web

Hacking Chinese gathers articles, courses, resources, challenges, and podcast material for people studying Mandarin.

UNIST shares research and university news and describes its science and technology community.

PCjs runs online emulators for DOS, Windows, OS/2, and other vintage PC systems in a web browser.

AmericasBarometer provides survey data on democratic governance and public opinion across countries in the Americas.

OpenAIRE helps users find and share linked research, including scholarly records, software and research data.

Float UI provides open-source Tailwind CSS components and website templates for React, Vue, Svelte, and HTML.

The U.S. Integrated Ocean Observing System coordinates people and technology to gather ocean, coastal, and Great Lakes data.

Japanese With Anime is a blog about Japanese language in anime and manga, with vocabulary and word explanations.

NoteKnight creates flashcards and study materials and includes AI study tools and learning games.

CosmoSim provides results from cosmological simulations, including MultiDark and Bolshoi projects and galaxy catalog data.

Voiceliner captures spoken thoughts and organizes them into nested outlines.

NASA Sounds and Ringtones features audio clips and ringtones from the agency's online audio collection.

NOAA’s Barrow Observatory conducts research on greenhouse gases, aerosols, surface radiation and stratospheric ozone.

edX offers online courses, certificates and degree programs from universities and other institutions.

Hawaii's State Data Office coordinates data sharing, integration, privacy, and evidence-based policy across state government.

St. Marianna University School of Medicine trains physicians and shares information about its medical school and campus life.

APPLAUSE archives historical photographic plates and related image materials for research and discovery.

The Pittsburgh English Language Institute Corpus provides information about its research data and links to a publicly available dataset.

FollowUpThen sends email reminders and follow-ups to help users remember messages and tasks.

mzCloud offers a searchable spectral database with high-resolution mass spectra to help identify compounds in scientific analyses.

Merton Data brings together local information about the borough and lets visitors explore details and compare local areas.

An introductory textbook, LearnDuck teaches Cantonese Jyutping typing and supplements the TypeDuck input method.

3Blue1Brown explains mathematics through visual lessons on linear algebra, calculus, neural networks, topology and other topics.

The UK's Biological Records Centre coordinates records of terrestrial and freshwater species with volunteer observers.