Education
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Design Tradeoffs
Course notes from the Computation Structures series on the tradeoffs engineers weigh when designing digital systems, suc…
Designer Notes
Soren Johnson's long-running podcast and blog featuring in-depth interviews with prominent game designers about their cr…
Designer Tips
A collection of design tips and practice advice that teaches the basics of UI and UX, aimed at people starting their fir…
Designing a Carbon-Free Grid
An explorable explanation where you adjust wind, solar, storage and nuclear mixes to see what it takes to power a grid w…
Desmos Graphing Calculator
A free, interactive online graphing calculator for plotting functions and exploring math.
Desolhar
A minimalist site that organizes a reader's notes from more than 90 philosophy books read over ten years, browsable by a…
DeTawk
A free German course app built on the FSI curriculum once used to train US diplomats, structured to take learners step b…
Detectable
An explorable explanation of signal detection theory, with playable experiments and live charts that show how people dec…
Detexify
Draw a symbol by hand and Detexify finds the matching LaTeX command, saving time hunting for the right math or special c…
Developer On Fire
A long-running interview podcast where host Dave Rael talks with software professionals about their personal stories, ca…
Developing Economics
A blog taking a critical, pluralist approach to development economics, with in-depth articles meant to spark reflection…
Devlibrary
A searchable library of freely available technical books, organised by category and language, with new additions highlig…
Devon Zuegel
A writer and programmer's site with essays on human potential, incentive design, cities and urbanism, and the ideas behi…
DevTools Tips
A collection of short, practical tips and guides for browser DevTools in Chrome and Firefox, from hidden shortcuts to de…
Diabolical Plots
A speculative fiction magazine and blog publishing free short stories alongside quirky lists and essays for writers abou…
Dialect Blog
A blog exploring English accents and dialects worldwide through audio samples, historical notes, and analysis of regiona…
Diaries of Note
One diary entry for every day of the year, drawn from the private diaries of writers, artists, explorers and ordinary pe…
Diasyrmus
A reflective personal blog of notebooks of grievances, mixing witty essays on books, philosophy, food, travel and worrie…
Diatoms of North America
A scientific reference cataloguing thousands of diatom species with detailed microscope photographs used for identificat…
DiCamillo Database
A searchable database of more than 6,200 British and Irish country houses, with histories of each estate and its fate, f…
Dictionary of Algorithms and Data Structures
NIST's long-running reference dictionary defining hundreds of algorithms, data structures and classic computer science p…
Dictionary of American Regional English
The scholarly home of DARE, a landmark project documenting the vocabulary and regional variation of everyday American En…
Dictionary of Divinity
An alphabetical dictionary of more than 350 positive character traits, personality descriptors and virtues, each with a…
Dictionary of Welsh Biography
Browse over five thousand concise biographies of people who shaped Wales, from botanists and antiquaries to poets and pr…
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