Tagging app for OS X - uses last.fm tags to help create smart playlists by tagging in iTunes. Synchronizes between last.fm and iTunes. Works with Spotify too, and retrieves lyrics for currently playing track.
Your Mashup not listed on ProgrammableWeb yet? Tell us about it and get listed.
Google AJAX Tune Bar
Google APIlity Library
Skype Developer Zone
Python Audioscrobbler WS
Perl Library for Last.fm
ScrobRhapsody - a Last.fm Rhapsody plug-in
Create a gig guide with Adobe Flex and Last.FM
Scrobbler Ruby for Last.fm
APIs, mashups and code. Because the world's your programmable oyster.
Executive Editor, ProgrammableWeb. Author, Map Scripting 101. Lover, APIs.