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Snap! (formerly BYOB) is a visual, drag-and-drop programming language. It is an extended reimplementation of Scratch (a project of the Lifelong Kindergarten Group at the MIT Media Lab) that allows you to Build Your Own Blocks.

It also features first class lists, first class procedures, and continuations. These added capabilities make it suitable for a serious introduction to computer science for high school or college students.

Wasabi is the hot cloud storage company, offering storage that's faster than S3 and less expensive than Glacier. Join the cloud storage revolution here.

Great tutorial on the use of git.

Linoxide: An article on how to install SoCLI tool to search and browse Stack Overflow from command line interface on Linux.

Etherscan is a Block Explorer and Analytics Platform for Ethereum, a decentralized smart contracts platform.

Mastodon is a free, open-source social network. A decentralized alternative to commercial platforms, it avoids the risks of a single company monopolizing your communication. Pick a server that you trust — whichever you choose, you can interact with everyone else. Anyone can run their own Mastodon instance and participate in the social network seamlessly.

There are plenty of file sharing utilities on the web. Some of them are CLI-based, and some of them are GUI-based. Some of them are free, and some of them are paid. When it comes to share or transfer large files from command line over Internet, there are only a few.

One of them is Transfer.sh. No, it isn’t a script, it is a website. It allows you to share files over Internet easily and quickly. You don’t need to install anything except cURL or wget. Most of the Linux distributions comes preinstalled with those utilities, so you don’t need to install anything, really.

Mathematics is all around us, and it has shaped our understanding of the world in countless ways.

In 2013, mathematician and science author Ian Stewart published a book on 17 Equations That Changed The World. We recently came across this convenient table on Dr. Paul Coxon’s twitter account by mathematics tutor and blogger Larry Phillips that summarizes the equations.

A unique method in the world to learn ROS online.

Entering and mastering ROS in only 5 days.

Measure intelligence

A software platform for evaluating and training intelligent agents across the world’s supply of games, websites and other applications.

Great transposition to PC for a game that I loved to play when I was young.

A tool for personal scheduling of appointments. Based on google calendar.

Free e-books on many technical topics.

Just draw the symbol you are looking for into the square area above and look what happens!

Free activities for classroom or home

CS Unplugged is a collection of free learning activities that teach Computer Science through engaging games and puzzles that use cards, string, crayons and lots of running around.

The activities introduce students to Computational Thinking through concepts such as binary numbers, algorithms and data compression, separated from the distractions and technical details of having to use computers. Importantly, no programming is required to engage with these ideas!

CS Unplugged is suitable for people of all ages, from elementary school to seniors, and from many countries and backgrounds. Unplugged has been used around the world for over twenty years, in classrooms, science centers, homes, and even for holiday events in a park!

The material is available free of charge, and is shared under a Creative Commons BY-NC-SA licence, which makes it easy to copy, adapt and share it.