UML Toolkit by Hans-Erik Eriksson and Magnus Penker.
JavaScript: The Good Parts: Working with the Shallow Grain of JavaScript by Douglas Crockford.
Algorithms in a Nutshell: A Dektop Quick Reference by George T. Heineman, Gary Pollice and Stanley Selkow.
With the Android DrawExpress App, you can draw diagrams and flowcharts in a simple and intuitive way.
Design Better Apps, Faster. iOS and Android prototypes made from your existing screen designs.
The mobiReady testing tool evaluates mobile-readiness using industry best practices & standards.
WAVE is developed and made available as a free community service by WebAIM. Originally launched in 2001, WAVE has been used to evaluate the accessibility of millions of web pages.
CyberGhost’s Chrome browser extension will encrypt you browser traffic. Surf anonymously and protect yourself from hackers and identity thieves.
Net Swiss Tools is compilation of network tools for Android.
Here are a few exciting big data sites: fold.it zooniverse.org data.gov.uk
Design responsive websites directly in the browser with the simple Froont drag and drop interface.