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Sim Daltonism

From the perspective of a color blind person, some colors are impossible to distinguish. Sim Daltonism lets you visualize colors as they are perceived with various types of color blindness. Use the camera on your iOS device, or use the Mac app to filter a region of the screen.


WebAIM: Color Contrast Checker

Ensure a proper contrast when choosing colors for your design.


Accessibility Wins: Google Chrome’s Color Contrast Debugger

Chrome Canary’s developer tools have an experiment where you can debug color contrast right in the style inspector.


Protonet: Das Startup mit dem Crowdfunding-Rekord ist insolvent

Das mit Millionen von der Crowd finanzierte Server-Startup Protonet muss Insolvenz anmelden. Die Domains werden abgestellt



Install 'Ask Google' Alexa Skill

“Sorry, I don’t have the answer to that question.” Alexa can’t even answer a simple question? Try installing the unofficial Ask Google skill to your Amazon Echo or Echo Dot. Now you can ask Alexa to ask Google any kind of questions.

This is really cool (and useful)!



youtube-dl is a command-line program to download videos from and a few more sites. It requires the Python interpreter (2.6, 2.7, or 3.2+), and it is not platform specific.

Works on Windows, too.


Learn X in Y Minutes: Scenic Programming Language Tours

Take a whirlwind tour of your next favorite language. Community-driven!



Cross platform GUI tool for lossless trimming / cutting of videos using ffmpeg


Intercloud: Cisco schließt 1-Milliarde-Dollar-Cloud

Ebenfalls keine gute Nachricht ist das Intercloud-Ende für die Initiatoren der Open-Source-Cloud-Software Openstack, auf der die Cisco-Cloud-Plattform basiert. Vor Cisco hatte schon HP seiner Openstack-Cloud-Lösung Helion den Stecker gezogen. Auch Openstack-Mitentwickler Rackspace hat der Lösung mittlerweile den Rücken gekehrt. 

Da kommt wohl Bewegung in den OpenStack-Business-Markt.


Aaron Parecki

Suddenly motivated to add IPv6 to my servers. This coffee shop is only giving me an IPv6 address so the whole IPv4 Internet is inaccessible.