There are already 4.000.000.000 photos on Flickr

Founded in 2004 and overbought by Yahoo in 2005, Flickr reached 4 billion photos on Saturday. Recall that 5 and a half months ago, the photos were 3 billion, and 18 months ago, two. So the progress of the most popular photo hosting is obvious.

More impressive indicators boasts Facebook . It is reported that in April, the number of uploaded photos was 15 billion, and every month, users download at least 2 billion.