What is a Mashup?
I keep hearing this term so I finally looked around and found a decent explanation:
The word mashup can apply to both the world of music and the world of web programming.
A musical mashup typically involves combining two or more different songs, often from very different musical genres, into one, resulting in an entirely different musical composition. Musical mashups have been around for a long time, arguably since the advent of modern mixing equipment. A famous musical mashup as of late is The Grey Album by DJ Danger Mouse. In this album, DJ Danger Mouse took musical and lyrical samples from The Beatles’ famous White Album and combined them with the music and lyrics from hip-hop artist Jay-Z’s The Black Album. The result was extremely controversial, but also surprisingly good.
A mashup in the computing world usually involves two or more web applications or parts of web applications combined to make something new, just like with The Grey Album. The end result is a hybrid web application.
Source: del.icio.us Mashups