Popular examples of online music stores that sell digital singles and albums include the iTunes Store, Amazon MP3, eMusic. Paid downloads are sometimes encoded with Digital Rights Management that restricts making extra copies of the music or playing purchased songs on certain digital audio players.
Free Music Downloads, Free MP3 Downloads, are on rising and thousands of people down load this music free from various artists free from websites like Afropopshop.org.
Digital music sales now generate around $2 billion in revenue, with tracks available through 500 online services located in 40 countries, representing around 10 percent of the total global music market. Around the world in 2006, an estimated five billion songs, equating to 38,000 years in music were swapped on peer-to-peer websites, while 509 million were purchased online
