How many comments & contributions?

At this point, there aren't any hard and fast limitations to the number of contributions per picture. As a practical matter, a hundred or more selections on a picture with dozens and dozens of comments on each is just messy to look at. It's technically not a problem however.

If you are expecting to use Ponga in a way that would create over a hundred selections with dozens of comments in each, let us know. We'd love to know more about how you're using it and talk to you about how to make the interface better suited to your needs.