What is Last.fm?

"Using a music recommendation system known as 'Audioscrobbler,' Last.fm builds a detailed profile of each user's musical taste by recording details of all the songs the user listens to, either on the streamed radio stations or on the user's computer or portable music device. This information is transferred to Last.fm's database ('scrobbled') via a plugin installed into the user's music player. The profile data is displayed on a personal web page. The site offers numerous social networking features and can recommend and play artists similar to the user's favorites...On 30 May 2007, CBS Interactive acquired Last.fm for US$280 million..." —Wikipedia

From Last.fm:

Last.fm is the flagship product from the team that designed the Audioscrobbler music engine. More than ten million times a day, Last.fm users "scrobble" their tracks to our servers, helping to collectively build the world's largest social music platform.

Last.fm taps the wisdom of the crowds, leveraging each user's musical profile to make personalised recommendations, connect users who share similar tastes, provide custom radio streams, and much more.

Founded by Felix Miller, Martin Stiksel and Richard Jones, [Last.fm is] a London-based company with a music-obsessed team of developers and creative professionals from around the world.

It's never been this easy to share your taste and discover new music. Welcome to the social music revolution.