What is a mashup?

You’ve probably heard the term mashup in the context of music; someone throws Jay-Z lyrics over a Radiohead song, and suddenly something old becomes new. The web version of a mashup is pretty similar except instead of rap and rock, you’ll mix map data, photos, video, news feeds, blog entries, etc.

The official definition goes something like this: A mashup is a combination of data sources to create a unified interface and experience.

For the visual learner, a whiteboard video courtesy of ZDNet: