"When you start to base journalism around data it’s easy to overlook basic weaknesses in that data – from the type of average that is being used, to distribution, sample size and statistical significance. [One] factor to consider when looking at any figures is seasonal adjustment."
"Google bought the company that made Gridworks, and now it’s released a new version of the tool under a new name: Google Refine. It’s notable that Google are explicitly positioning Refine in their video (above) as a 'data journalism' tool."
"If you’d like to use our Congress API but aren’t a programmer or Web developer, you still have a chance. Take the venerable spreadsheet, for example. Standard features of Windows versions of Microsoft Excel and of Google Spreadsheets make it possible to load data from the API directly into those applications."