Flickr

Flickr is a website that hosts images and videos, which is generally used by the public to share or embed personal pictures from holidays or interesting experiences. In September 2010, it was reported that it held 5 billion images.



However, I think that the main problem with Flickr is that anyone can see all of your photos, even if you do not want them too. You can block individual people from favouriting your photos, or commenting on them, but they can still see your photos. Unlike Facebook, this could prevent people from uploading certain photos, if they knew that everyone could see them.