The simple piece of software is Skype - you can use it make free telephone calls over the internet. When I first used Skype I was mindblown by its ease of use and great clarity of the calls - so much so that I went straight to their website and applied for a job. After a lengthy and detailed interview process my patience was rewarded and I now work for Skype, writing documentation for external developers who are incorporating Skype into a whole new breed of internet communication tools.

It is the coolest job imaginable - working with a rapidly expanding team who bring a wealth of professionalism and expertise to the task of growing the Skype phenomenon while staying free and easy to use.