http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (AP) -- Apple's iTunes Store isn't the only one that has adjusted prices for its digital song downloads recently: Changes are showing up at Amazon's and Wal-Mart's online music stores, too. http://www.physorg.com/news158434196.html Technology Wed, 08 Apr 2009 18:30:24 EST news158434196