Photo upload initiatives last from a single day, to several months. The average[1] event lasts 30 days[2] (see Graph 1).
Participation
The average photo upload initiative has 16 participants.
All six (100%) photo upload initiatives had participant counts. These counts ranged from four to 365. Events averaged 16 participants, the same as edit-a-thons.[3] Out of the six photo upload events reviewed for this report, participant usernames were available for five events.