My first proper web app was ProgrammerMeetDesigner.com. It was a meeting ground for programmers and designers (and later entrepreneurs) who wanted to work toget

My first proper web app was ProgrammerMeetDesigner.com. It was a meeting ground for programmers and designers (and later entrepreneurs) who wanted to work together. Wrote it from scratch in PHP with a MySQL backend, launched in 2006, sold it a year later. It's still pretty much unchanged.