Futility Closet

theMage: the Futility Closet is a blog of factoids of little relevance. Not too useful, but quite fun to read

Romance of the Three Kingdoms Podcast

Podcasts Fan: A retelling of the classic Chinese novel Romance of the Three Kingdoms in a way that’s more accessible to a Western audience. See 3kingdomspodcast.com for more.

Wizard Zines

theMage: Wizard Zines is a website is a bunch of tech related "zines" explaining different types of topics related with programming and computer systems - in comic format. Really amazing comics.

UX Sniff

theMage: UX Sniff is a tool to track how the users of a website interact with the website.

Free Code Camp

theMage: FreeCodeCamp is a community of people who are leaning to code. Everything is 100% free, including courses, projects and even some certifications.

Neal's Fun

theMage: Neal's website is a fun collection of games and fun facts demonstrations.

Gently Down the Stream - Kafka for kids

theMage: Gently Down the Stream is a simple explanation of what Kafka is for kids, in the format of a small ilustrated book, using otters as the producers and consumers of messages

EtherPad

theMage: Etherpad is an opensource colaborative text editor that be used as is, or to create more complex systems.

Leanpub

theMage: Leanpub is a platform to create and publish ebooks and online courses. It is also a good place to find ebooks drm free.

Google

theMage: Google is the most used search engine in the world - probably also the one that most private information collects about everyone ;-)