Hi, my daughter is very inquisitive, and asks a lot of questions.
She enjoys looking through all the photos with me, and has asked me a few times, how many people are doing this photo a day thing?
Is there somewhere on the website that tells how many members there are?
If you click on the "browse by day" tab, you can see how many pictures have been submitted on any given day. I randomly clicked on March 24th (assuming almost all of them would be uploaded by now) and the number says 876 items.
I told her I'm sure it's at least 500... she wanted more specific ;)