iTunes accounts for 25 percent of all US music sales

Online music sales have grown to 35 percent of the market in the US this year, with Apple accounting for almost seven out of ten songs sold online. The company's iTunes service is the most popular sources to buy music in the US, research company NPD Group estimates Apple sells 25 percent of all music in the US.

CD sales still account for 65 percent of all music sold during 2009 thus far, but analysts believe digital music sales may equal CD sales by the end of next year.

iTunes remains in the lead for all music sold in the US at 25 percent of "music units sold," up from 21 percent last year and 14 percent in 2007. Comparatively, Walmart (meshing its online and physical CD sales) remains in second place overall with 14 percent of all music sold, while Best Buy came in third. When looking at only online sales, iTunes made up 69 percent of the digital music market in the first half of 2009 and Amazon MP3 came in second at eight percent.

More info at ARS Technica.