Last year, Mitchell's canvases were the two most expensive works by any woman artist sold at auction, according to auction database Artnet.

WSJ: In the Art World, Women on the Verge

The database can be searched by owner, artist, or collection, or a combination of criteria.

FORBES: New Web Sites Help Track Nazi Plunder. The Timing Couldn't Be More Urgent.

The program can manage a database of well over 5, 000 songs, and can categorize them according to artist, record, or genre.

CNN: RealJukebox: MP3 for dummies

This includes their audio fingerprinting technology that can do artist, album and track recognition based on matching up short snippets of songs to its massive database.

FORBES: Move up http://i.forbesimg.com t Move down

The service combines Shazam's database of more than 10 million tracks, which powers music identification and song and artist recommendations, with Spotify Premium's mobile App on the iPhone, iPod touch and Android-powered phones, which offers instant access to millions of tracks and playlists.

ENGADGET: Shazam and Spotify team up on iOS and Android apps Alt