OpenRefine
OpenRefine is a powerful tool for working with messy data: cleaning it; transforming it from one format into another; extending it with web services; and linking it to databases. This tutorial will lead you through the process up to the point of visualizing it with the tutorial below.
Visit tutorialChoropleth Mapmaker
A choropleth map is a thematic map in which areas are shaded or patterned in proportion to the measurement of the statistical valriable being displayed on the map, like population density or per-capita income. Here's how to make your own with the data you cleaned up in the lesson above.
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Ever wanted to know how to transform a website into a table of data but don't know Python or R or Javascript? This program will help you out.
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This tutorial will briefly show you how to channel specific raigslist search results into a Google Spreadsheet.
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