a flight tracking service that provides you with real-time info about thousands of aircraft around the world. Using flight information data from aircraft by ADS-B transponder (in ~60% of all passenger aircraft) and delayed (~5 min) data from the Federal Aviation Administration (FAA).
a open source tool and free web service that lets you map your flights around the world, search and filter them in all sorts of interesting ways, calculate statistics automatically, and share your flights and trips with friends and the entire world (if you wish).
lets you instantly set up secure conversations. It's an open source encrypted, private alternative to WEB chat systems. Messages are encrypted inside your own browser using AES-256. Encrypted data is securely wiped after one hour of inactivity. Runs as a Tor hidden service.
a tool by the Electronic Frontier Foundation that tests your browser "fingerprint" to see how unique it is based on the information it will share with sites it visits.
online, in-browser tools for schematic capture and circuit simulation. These tools allow students, hobbyists, and professional engineers to design and analyze analog and digital systems before ever building a prototype. Online schematic capture lets hobbyists easily share and discuss their designs, while online circuit simulation allows for quick design iteration and accelerated learning about electronics.