🎓 Education

metaphorical.ly Website

Metaphorical.ly

An open-source effort to demystify common and popular technologies by explaining them through easy, jargon-free, brain-f…

amsmeteors.org Website

Meteor Shower Calendar

The American Meteor Society's calendar of annual meteor showers, listing which are active, their peak dates, and expecte…

mic-ro.com Website

Metro Bits

A long-running index of metro system maps from cities around the world, linking to official transit maps for hundreds of…

mezzoguild.com Website

Mezzoguild

A blog for self-directed language learners sharing strategies, resource reviews, and advice for tackling minority and en…

mhtabletennis.com Website

MHTableTennis

A free table tennis coaching blog from international player Matt Hetherington, with technical articles on every part of…

michaelfullan.ca Website

Michael Fullan Blog

Posts from a leading authority on educational reform about leadership, school change, and deep learning for teachers and…

microbehunter.com Website

Microbe Hunter

A hub for amateur microscopists sharing techniques, forums, and photos of pond water organisms, bacteria, and other micr…

microscopy-uk.org.uk Website

Microscopy UK

One of the web's longest-running amateur microscopy magazines, publishing articles, techniques, and images from hobbyist…

micronations.wiki Website

MicroWiki

A wiki documenting micronations, the self-declared nations that do not really exist, with histories, flags, and governme…

stubert.info Website

Midwest Old Threshers Reunion

A fan's unofficial guide to the annual five-day steam and antique machinery reunion in Mt. Pleasant, Iowa, with photos,…

bost.ocks.org Website

Mike Bostock

The visual-explanations blog of D3.js creator Mike Bostock, featuring interactive charts and step-by-step tutorials on d…

wwwmpa.mpa-garching.mpg.de Website

Millennium Simulation Project

Visualizations of the famous Millennium cosmological simulation, with movies and pictures of dark matter and galaxy dist…

blog.mam.org Website

Milwaukee Art Museum Blog

The Milwaukee Art Museum's blog, sharing insights into its collection, exhibitions, and behind-the-scenes stories from c…

mindremakeproject.org Website

Mind Remake Project

Mental health information and resources from a therapist's perspective, with posts on remaking, reinventing and flourish…

mindyourdecisions.com Website

Mind Your Decisions

Presh Talwalkar's blog of math puzzles, game theory, and short video explanations, with brain teasers that reward a seco…

mindat.org Website

Mindat

The world's largest open database of minerals, rocks, and localities, with photographs and data maintained by a communit…

mindos.in Website

MindOS

A ten-year project to build an operating system for your mind, presented as a numbered series of posts on epistemology,…

minerals.net Website

Minerals.net

A comprehensive online mineral and gemstone encyclopedia with photographs, chemical properties, and identification guide…

minifeed.net Website

Minifeed

A hand-curated collection of human-written personal blogs with working feeds, browsable by random pick, tag or list, plu…

miningartifacts.homestead.com Website

Mining Artifacts

A site dedicated to Minnesota mining history, with artifacts and stories from the iron ranges and the men who worked und…

mmds.org Website

Mining of Massive Datasets

The companion site to the Mining of Massive Datasets textbook, offering the full book free to download along with lectur…

minix3.org Website

MINIX 3

The home of MINIX, the small teaching operating system created by Andrew Tanenbaum that influenced Linux's early develop…

minutereads.io Website

MinuteReads

A free library of book summaries covering bestselling nonfiction in business, self-help, and productivity, each readable…

missouriplants.com Website

Missouri Flora

Photographs and descriptions of the vascular plants of Missouri, browsable by flower color, leaf arrangement or scientif…