Here is my first data visualization. I used the Processing programming language and an SVG map of the United States. ...

Here is a quick way to put the contents of a database table into a simple text file. This could be handy if for example, you just want to grab some emails and pop the results into a simple csv file. Your sql statement can be as creative as sql allows. All...

To use the jQuery javascript framework in a Rails application, that also uses the Prototype framework for the same application, you'll need to reassign the $() function for jQuery to another variable. This is very simple to do. Just make sure to include t...

To get a Gravatar you need to hash an email address with the MD5 algorithm. MD5 is a part of the Ruby standard library. Rails loads it by default, but otherwise you will have to require it yourself. This is a simple implementation. Gravatar su...

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