How many pictures are there on Google images?

Photoshop

OK--So, we'll take Flickr for instance: as of Sep. 2010 5 billion or 5,000,000,000 images

I figure exponentially as of this moment that is about 10 billion or 10,000,000,000 images

The other top 20 are headed towards this same mark so lets just say for argument sake it is 10 billion times 20

That will take into account Picasa, Photobucket, smugmug, flickr, fotki, care2, webshots, dotphoto, advanquest, myphotoalbum, KodakGallery, PBase, Photoshop, and about 10 or so others, that is an easy 200 billion photos!

Now, If you consider the unnamed photo places, other group, both public and private, and photos for servers, web pages, facebooks, and other social media and ad photos, and foreign entities, you will have to arrive at a number at any given second on the web there are at least 500 billion to 1 trillion photos online at any given second. I could be way off here, but this is a start! Just imagine 1,000,000,000,000 photos both foreign n domestic at any given second.