Flickr: online photo sharing-now contains 17 million photographs.
Woophy: another emerging photosharing site, allows users to locate photography by geographical location.
Online Image Exhibits | National Archives
Powers of Persuasion | National Archives
Picturing the Century | National Archives
Designs for Democracy | National Archives
Featured Documents | National Archives
Flickr Bomb Blasts Community | London July bombings
WillRich kid collection at Flickr
Interestingness at Flickr
Dave's photos at Flickr
Primary Source Digital Archives and Collections | Chico High School, Chico, CA.
Photo Essays from Time Magazine
New Orleans Nola.com BridgeCam Photos | screenshots I took as Katrina approached.