The online service imeem was a social media web site where users interacted with each other by streaming, uploading and sharing music and music videos. However, after MySpace acquired the service, it was shut down, in 2009.

The company was founded in 2003 by Dalton Caldwell (formerly of VA Linux) and Jan Jannink (formerly of Napster), and many of its core engineering team came from the original Napster file-sharing service. The company takes its name from "meme", a term coined by biologist Richard Dawkins to describe the ideas and cultural phenomena that spread as if they had a life of their own.

Helping to pioneer the free, advertising-supported model for online music, imeem permitted consumers to legally upload, stream and share music and music playlists for free with the costs supported by advertising. In 2007, imeem became the first-ever online music site to secure licenses from all four U.S. major music labels to offer their music catalogs for free streaming and sharing on the web.

The company also created the web's first embeddable music and video playlists. People could use imeem's widgets to embed songs and playlists from imeem virtually anywhere on the web, including on their MySpace and Facebook profiles or on their personal blogs.