Photos should have:
- A minimal size of 1024x768 (0.7 megapixels) to make it wallpaper-worthy.
- A proper title (not just 'Larry')
- The city and venue name in the title or additional info [Photo taken at MONTH DATE YEAR at VENUE by NAME PHOTOGRAPHER/USER.] (Example: Photo taken at July 24 2009 at Croke Park by Remy)
Last but not least and perhaps the most important note
Upload good, serious photos with proper composition, lightning, subject and relevancy. For example, we don't want a blurry image showing Bono on screen.
And please rotate the photos if necessary.
Summarised
# Minimal size of 1024x768
# Proper title
# Name of city, venue and photographer/user present plus date and year
# Rotate if necessary
# Make sure the photo is interesting/relevant