From MacDailyNews:

On February 26, 2008, Apple announced they had hit the 4 billion songs sold mark. They've now sold over 1 billion more songs in just the last four months or 250 million songs per (non-holiday, non-gift card) month on average.

Also, iTunes customers are now renting and purchasing over 50,000 movies every day, making iTunes the world's most popular online movie store.

Read the rest of the article here [macdailynews.com].