Crossfilter - Fast multidimensional filtering for coordinated views
Diagrams for Mac - A diagram editor for visualizing structures and processes
Sheetsee.js - Connect Google Spreadsheets and visualizing the data
Quick Diagram - A tool for generating diagrams and flowcharts from text.
Juicebox - Spectacular HTML5 Image Galleries Made Easy
nivo - nivo provides a rich set of dataviz components