The whole thing is odd. For example, look at the IDE category as a whole. Aptana is a set of plugins for Eclipse, and Selenium IDE is an Firefox plugin "IDE"

The whole thing is odd. For example, look at the IDE category as a whole. Aptana is a set of plugins for Eclipse, and Selenium IDE is an Firefox plugin "IDE" for a very specific tool/purpose (writing Selenium tests) rather than a generic coding IDE like the rest. Visual Studio should definitely be in there too, given the numbers for .NET and MSSQL. I'm also wondering why GitHub isn't somewhere on here. It seems like it'd fit in several categories ("project management" and "bug tracking" to start), and I have a hard time believing that a demographic composed of 53% Git users and 28% Rails devs would have less than 4% using GitHub for either of those purposes.