Gapminder. OpenHeatMap. Tableau public. Factbook eXplorer. Choosel. Protovis. VIDI. NodeXL. World Cloud. Gephi. OpenLayers. Git. OpenStreetMap. InfoVis. Quantum GIS. Data Wrangler. Many Eyes. Exhibit. The R Project. IMPURE. Online Reporting. 22 free tools for data visualization and analysis. Review April 20, 2011 06:00 AM ET Computerworld - You may not think you've got much in common with an investigative journalist or an academic medical researcher.
But if you're trying to extract useful information from an ever-increasing inflow of data, you'll likely find visualization useful -- whether it's to show patterns or trends with graphics instead of mountains of text, or to try to explain complex issues to a nontechnical audience. Cube. Time Series Data Collection & Analysis Cube is a system for collecting timestamped events and deriving metrics.
By collecting events rather than metrics, Cube lets you compute aggregate statistics post hoc.