Simon Willison’s Weblog

Web app: what programming knowledge do I need to create a goings on app?

My answer to Web app: what programming knowledge do I need to create a goings on app? on Quora

For this kind of application a much more important question than "how can I build it? is "where will I get the data from?"—If you don’t have a good answer for that building the app is a waste of your time. The world is littered with local events listings apps that no one uses because they don’t have good data.