To get started with data wrangling, we recommend checking out the tools and courses at School of Data.

• Orange http://orange.biolab.si/
• Weka http://www.cs.waikato.ac.nz/ml/weka/
• R http://www.r-project.org/
  • also see Try R, RStudio, R manual, cheat sheet, Stat Methods
• Weave http://www.oicweave.org
• Tableau tableausoftware.com
  • also see open data tutorial, statistical insights and Tableau Public
• Freebase http://www.freebase.com/
• Google Public Data http://www.google.com/publicdata/directory
• Google Fusion Tables http://www.google.com/fusiontables/Home
• Wolfram Alpha Pro wolframalpha.com, blog post
• Many Eyes http://www-958.ibm.com/software/data/cognos/manyeyes/
• NovoSpark novospark.com
• Gephi http://gephi.org/
• Outwit http://www.outwit.com/
• Time Flow http://flowingmedia.com/timeflow.html
• Google Visualizations code.google.com - a collection of graphing widgets
• Graphviz http://graphviz.org/
• Cytoscape http://www.cytoscape.org/ - for complex network visualizations
• Open Heat Map http://www.openheatmap.com/
• Google Refine http://code.google.com/p/google-refine/
• DataWrangler http://vis.stanford.edu/wrangler/
• Quantum Gis http://www.qgis.org/
• GeoCommons http://geocommons.com/
• RStudio http://www.rstudio.org/
• NodeXL http://nodexl.codeplex.com/ Network Overview, Discovery and Exploration for Excel
• ZingCharts http://www.zingchart.com/ Create HTML5/Flash/ SVG charts
• IfThisThenThat http://ifttt.com/
• DERI Pipes http://pipes.deri.org/
• Microsoft PowerPivot microsoft.com
• Stamen Dotspotting http://dotspotting.org/
• Afterquery http://afterquery.appspot.com/help

• Dafizilla Table2Clipboard Firefox
• Scraper Chrome
• Table Capture Chrome
• Data Toolbar IE

* Kimono Labs Easy web site data extraction on all browsers