Contributions
Photographs can be contributed by any registered user, although they must be approved by a panel of moderators before appearing on the website. The main aim of moderation is to make the site 'classroom ready' so that inappropriate images are rejected. The activity of taking photographs for the project is known as geographing. All images are licensed by the contributors using the Creative Commons cc-by-sa 2.0 licence which permits modification and redistribution of the images under certain conditions. Contributors should be aware that they are granting everyone an irrevocable licence to use their image(s); it is very difficult to get an image removed once it appears on the website. Photo resolution is a minimum of 640 by 480 pixels, with options for higher resolutions.
The entire archive of images with RDF metadata is being made available for download via BitTorrent.
As an incentive to increase coverage, participants are awarded a point each time they contribute the first photograph classified as a geograph to a grid square. There is, however, no limit to the number of images per square, and some squares have over 1000 images.
Some participants combine geographing with other outdoor location sports such as letterboxing, geocaching, trigpointing, benchmarking, and peak bagging.
Read more about this topic: Geograph Britain And Ireland