AOL Radio powered by Slacker (formerly AOL Radio powered by CBS Radio, and prior AOL Radio featuring XM) was an online radio service available in the United States only. It had over 200 free internet radio stations. History Roots AOL Radio can trace its roots to two companies it acquired on June 1, 1999, for $400 million: Spinner.com and Nullsoft. Spinner.com was formerly known as TheDJ.com. Nullsoft was the maker of the popular Winamp and SHOUTcast products. Both new organizations operated out of the same office in San Francisco. The Spinner.com brand was retired in July 2003. AOL Radio launched as Radio@AOL, essentially a rebranded Spinner.com, using technology from RealNetworks on October 16, 2001 as part of the AOL 7.0 software announced that same day. In its first month of operation, AOL reported that 2.2 million members accessed Radio@AOL, making it one of AOL's most popular features. Initially, Radio@AOL was available only to AOL members. On May 22, 2002, AOL released the free Radio@Netscape for non-members as part of the new Netscape 7.0 browser. On August 22, 2002, AOL released Radio@Netscape Plus. Beginning in 2004, AOL started metering Radio@Netscape to allow only two hours of usage per day. AOL did this to avoid paying copyright royalties and to encourage users to become AOL members. 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. Yahoo! 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. Partnership with CBS Radio On April 30, 2008, XM and AOL Radio ended their partnership due to the change in Internet royalty rates and formed a new alliance with CBS Radio. This announcement coincidentally came months before XM merged with Sirius Satellite Radio to form the present-day Sirius XM service. On June 10, 2008, a new AOL Radio player debuted with AOL's 150 pre-programmed stations as well as CBS's live and local music, news/talk, and sports stations. 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. It was available