Mashups are applications which make use of data from more than one location or context by integrating data from external databases or applications and exposing the user to richer data combinations in one central presentation.
Excellent Mashups by Satoru Yano
- YouTube TV: http://tv.youtubech.com/
- Japanese YouTube Web Player Mashup: http://fplayer.youtubech.com/index.pl?q=brittany
- YouTube Subtitle Inserter: http://subtitle.in/
- phpTube can download and upload using the YouTube Developers API: http://www.phpclasses.org/browse/package/3966/download/targz.html