Joy of Computing

A nice overview of the pros and cons of making entirely static web apps by storing all of the state in the URL. — nicholasbs

Build ebooks from article links to send them to eReaders. Pinkindle can also get links from a pinboard.in account. — dbalan

A detailed overview of how to embed LEDs in a quilt. — nicholasbs

A little utility for merging multiple PDFs into one, larger PDF. — davidbalbert

Generate your own card game based on any topic using Wikidata! It works by fetching instances of arbitrary subclasses of the topic, finding the properties that occur most often, and selecting the 32 cards which have as many of these as possible filled in. Made by blinry and bleeptrack. — Mai

Pho-diff lets you visually compare the phonetic inventories of two languages by presenting a diff of their representations in the International Phonetic Alphabet! — Mai

A clever variant on a Space Invaders type game, where you shoot hearts at your sad friends until they get happy! — Mai

A tool that lets you move a process from one terminal to another. — davidbalbert

Describe your Gmail filters programmatically. The filters you write with gmail-britta often work better than the ones you set up by hand. — davidbalbert

An explanation of metrics for comparing statistical classifiers, and why the most common one, AUROC, is so commonly used. — porterjamesj