LoL Tracker is a team stats platform for League of Legends five-stacks, covering Flex, Ranked 5v5 and custom scrims on one team page. It offers MVP scores, team leaderboards, champion stats, draft practice and an AI coach. Plans include a free tier, Tryhard and Pro subscriptions.
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Low-tech Magazine covers past and forgotten technologies and how they can inform sustainable energy practices. Its website is solar-powered and self-hosted, designed to reduce the energy use associated with accessing its content, and it notes that it sometimes goes offline. Articles and guides include building solar-powered devices and domestic low-tech projects.
Lurnby is a learning tool designed to help users understand and remember read content via neuroscience-validated techniques. It supports saving content from web articles, eBooks, emails and personal notes, customizable reading display settings, active highlighting and annotation, and automated spaced repetition, chunking and recall practice for retention. It offers Firefox and Chrome browser extensions and syncs notes and highlights across mobile and desktop devices.
Macroinvertebrates.org is a taxonomy browsing site for aquatic macroinvertebrates. It presents insect orders, families and genera, including beetles, true flies, mayflies, dragonflies and stoneflies, with collection and taxa list views. It also provides an identification key, training materials, a practice quiz, a glossary and a PocketMacros app.
MadAsMaths is a mathematics resources site offering free materials for students and teachers. It provides mathematical booklets classified by topic with questions and full solutions, practice papers with solutions, and Project Maths PowerPoint presentations. The site is static with no further updates and its contact form deactivated.
Supports teaching, studying or skills practice with AI-guided learning tools.
Math Planet is a free platform for learning mathematics, offering high school courses in Pre-algebra, Algebra 1, Algebra 2 and Geometry, plus SAT and ACT preparation with practice tests and tips. It is run by Mattecentrum, a non-profit organization.
McOsu is a free open-source circle-clicking rhythm game practice client for osu! beatmaps with Virtual Reality support. It is developed separately from osu! and has no direct affiliation with osu! or ppy Pty Ltd. It only supports osu!(standard) beatmaps, and the developer does not recommend it for players who have never played osu! before.
Medical news publication covering clinical research, health policy and professional practice.
Mindfulness Coach is a VA app developed by the National Center for PTSD to help Veterans, Service members and others learn mindfulness practice. It offers a gradual self-guided training program, an information library, audio-guided exercises, goal-setting and tracking, a mastery assessment, reminders and crisis resources. It is an education and self-care tool that does not replace professional care for PTSD or other mental health conditions.
Minify-JS.com is an online tool that reduces the size of JavaScript code using the Terser utility, which is compatible with the ES6+ standard. The site also includes resources, best practices, configuration examples and usage guides related to JavaScript minification.
Monoskop Log is a digital library of arts and humanities. Its entries list books and publications, including The Lab Book: Situated Practices in Media Studies and Networks of Care, with publisher, ISBN and page details. The site also notes a Mastodon account and newsletter.
A tutorial website offering MySQL lessons covering basics, stored procedures, triggers, views and indexes, plus programming interfaces for PHP, Java, Python, Node.js and Perl. It includes a getting-started section intended to leave a local MySQL database with a sample database for practice.
The NASA/IPAC Extragalactic Database is a database of extragalactic sources drawn from the astronomical literature. Its September 2026 release highlights note ingestion of 221K sources, including 157K cross-matches with NED objects and 63K new objects, and describe suggested data publication practices for journal articles.
New York Medical College is a private health sciences university and a member of Touro University, located in Westchester County outside New York City. It comprises the School of Medicine, the School of Health Sciences and Practice, and the Graduate School of Biomedical Sciences. The college describes a humanistic, collaborative education with clinical training across the tri-state area.
OPARA is the research data repository for Saxon universities. Researchers can archive digital research data in line with good scientific practice for an initial period of ten years, or publish it, which assigns a DOI and makes it discoverable and accessible to everyone. Submissions go through a review process.
Open Data Manchester is a not-for-profit organisation that supports people, organisations and communities in using data effectively through advice, advocacy, events, research, support and training. Its mission is to promote responsible data practices that deliver benefits for people, the planet and prosperity, working locally in Greater Manchester, nationally and internationally.
OvertakeFans is a Formula 1 fan site presenting best moments of Formula 1. The page displays countdowns to United States Grand Prix 2026 Practice 1 and the United States Grand Prix 2026 Weekend Warm-Up, and invites visitors to a Discord server to discuss sessions live and get support.
OverTheWire is a community offering wargames intended to help people learn and practice security concepts through games. Its suggested order begins with Bandit for Unix/Linux basics, followed by a choice among Natas for web security, Krypton for cryptography or Leviathan for reverse engineering, then binary exploitation games. Each shell game uses its own SSH port.
Supports teaching, studying or skills practice with AI-guided learning tools.
PassMedicine provides free UCAT revision with over 3,000 practice questions covering Verbal Reasoning, Quantitative Reasoning, Decision Making and Situational Judgement. The interface is designed to mirror the real exam, and users can compare their scores with others and discuss individual questions. A six-month subscription option is listed as free.
PHP: The Right Way is an easy-to-read, quick reference for PHP best practices, accepted coding standards, and links to authoritative PHP tutorials. It is a living document translated into many languages and also available in PDF, EPUB and MOBI formats. It recommends starting with the current stable version, PHP 8.5.
PianoCheetah is piano practice software that converts song notes to a maximum of ten keys, intended for playing with fingers rather than hand hopping. Notes are shown in a simplified notation aligned to the fingers, and the user sets tempo and note velocities while other tracks follow. The site states it is not a DAW.
The Plum Village App is a free mindfulness app offering guided meditations, deep relaxations, and other practices from Zen master Thich Nhat Hanh and his monastic community. It is available for Apple and Android smartphones, with a web version and Chrome and Firefox browser addons. The app has been downloaded by more than 500,000 people.