Found via BoingBoing
On February 15, 2006 I discovered that the photo sharing site Flickr had reached 100 million hosted photos. Today (September 22 2006) at 11.18 PM CET, only seven months later, Flickr passed the quarter billion mark – 250 million photos.
It maybe that Flickr is doesn't have the number of people that Yahoo Photos might do, but I very much douht that the quality and quanity of photos is anywhere near flickr. I do wonder the percentage which are creative commons licenced however.