http://www.kunsthaus.ch/en/library/digital-library/picture-databases/?redirect_url=title%3DCommunique%C3%A9s%20%20%2F%2F%2Fcomponents%2Fcom_virtuemart%2Fshow_image_in_imgtag.php%3FmosConfig_absolute_path%3D

Kunsthaus Zürich

Picture Databases

Image Search of Search Engines

Bing

Flickr

Google

Yahoo

Picture Archives

Deutsche Fotothek

Photography

Magnum Photos