The Data Visualisation Catalogue - Reference tool for data visualisation
Flourish - Powerful, beautiful, easy data visualisation
CodeAnalogies - Visual explanations of web development topics
DataWrapper - An open source tool helping anyone to create simple, correct and embeddable charts in minutes.
Dasheroo - Dasheroo provides overall business analytics, web analytics, marketing, social media and sales through a data dashboard.
Infogram - Make charts & infographics that people love