AChartEngine
Peity (sounds like deity) is a simple jQuery plugin that converts an element's content into a simple <canvas> mini pie line or bar chart.
https://github.com/benpickles/peity
http://benpickles.github.com/peity/
Smoothie Charts is a really small charting library designed for live streaming data. It was built to reduce the headaches getting from watching charts jerkily updating every second.
http://joewalnes.com/2010/08/10/introducing-smoothie-charts/
D3.js is a small, free JavaScript library for manipulating documents based on data.
D3 allows you to bind arbitrary data to a Document Object Model (DOM), and then apply data-driven transformations to the document. As a trivial example, you can use D3 to generate a basic HTML table from an array of numbers. Or, use the same data to create an interactive SVG bar chart with smooth transitions and interaction.
D3 is not a traditional visualization framework. Rather than provide a monolithic system with all the features anyone may ever need, D3 solves only the crux of the problem: efficient manipulation of documents based on data. This gives D3 extraordinary flexibility, exposing the full capabilities of underlying technologies such as CSS3, HTML5 and SVG. It avoids learning a new intermediate proprietary representation. With minimal overhead, D3 is extremely fast, supporting large datasets and dynamic behaviors for interaction and animation. And, for those common needs, D3’s functional style allows code reuse through a diverse collection of optional modules.
http://mbostock.github.com/d3/
https://github.com/mbostock/d3
Via O’Reilly Radar (http://radar.oreilly.com/2011/03/four-short-links-8-march-2011.html)
Highcharts is a charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application. Highcharts currently supports line, spline, area, areaspline, column, bar, pie and scatter chart types.
Commercial or free for Non-commercial
30 High Quality Charts And Graphs For Webdevelopers
http://www.designyourway.net/blog/resources/30-high-quality-charts-and-graphs...
Gephi is an interactive visualization and exploration platform for all kinds of networks and complex systems, dynamic and hierarchical graphs.
Gephi is a tool for people that have to explore and understand graphs. Like Photoshop but for data, the user interacts with the representation, manipulate the structures, shapes and colors to reveal hidden properties. The goal is to help data analysts to make hypothesis, intuitively discover patterns, isolate structure singularities or faults during data sourcing. It is a complementary tool to traditional statistics, as visual thinking with interactive interfaces is now recognized to facilitate reasoning. This is a software for Exploratory Data Analysis, a paradigm appeared in the Visual Analytics field of research.
Runs on Windows, Linux and Mac OS X. Gephi is open-source and free.
http://gephi.org/
The JavaScript InfoVis Toolkit provides tools for creating Interactive Data Visualizations for the Web.
Neo4j is a graph database. It is an embedded, disk-based, fully transactional Java persistence engine that stores data structured in graphs rather than in tables. A graph (mathematical lingo for a network) is a flexible data structure that allows a more agile and rapid style of development. Licence: APGLv3/commercial http://neo4j.org/
Presentation:
