Flicker, like a lot of hugely successful internet programs, was created by an accident of sorts. Born out of the game Neverending, a program which published photo sharing software which developed to overtake the original site, Flickr is now a massive online community were you can share photos with the world or just your friends. Flickr has recently claimed it has reached the 3 billion mark in its number of photos, and there are a massive variety of photos posted on the site. With all these photos, many extremely personal, you might think that privacy would be a major issue on the site. However, unlike Facebook, this doesn't seem to be the case; you can claim rights on the photos you post, and can decide whether you want the photo to be public, which means anyone trawling through the site can see it, or private, which means that only your friends can see them.

Photos can also be tagged, and so are more easily searchable; for example, if you want your photo to be found if anyone typed up "landscapes" on the Flickr search bar, you can tag your photo "landscapes". Various information compilation services and tools have also been created.