[1] AOL Radio can trace its roots to two companies it acquired on June 1, 1999, for $400 million: Spinner.com and Nullsoft.

[4] Beginning in 2004, AOL started metering Radio@Netscape to allow only two hours of usage per day.

[5] On November 28, 2007, AOL announced that they might shut down their web radio services after a 38 percent increase in royalties to air music.

and AOL discontinued directing users to their radio sites after SoundExchange, the non-profit performance rights organization that collects royalties on the behalf of sound recording copyright owners (SRCOs) and featured artists for non-interactive digital transmissions, began collecting the higher fees in July.

It also enabled song skipping (limited to 6 per hour) for its users, though it's not applicable on live stations.

It also allowed users unlimited presets to their favorite stations as well as access to personal songs history.

This changeover, however, required iPhone/iOS users to update or download the new "AOL Radio" app when it became available.

This new format allowed users to customize their stations based on their favorite songs/artists and share them with their friends.

Though the service was free with limited song-skipping and fewer commercials, they offered two different subscription plans—Radio Plus and Premium Radio tiers, both of which offered ad-free radio and unlimited song-skipping and offline listening, with on-demand listening for the latter tier.

In July 2005, a web version of AOL Radio was introduced for non-members with unlimited listening.

On July 10, 2008, AOL released a client for Apple's iPhone and iPod Touch via the App Store offering mobile streaming of all stations though WiFi, EDGE and 3G cellular connections.