http://creativecommons.org/
http://www.flickr.com/creativecommons/
http://www.creativepro.com/eservices/imagegrabber
http://gallery.hd.org/
http://www.freefoto.com/
http://oposite.stsci.edu/pubinfo/pictures.html
http://www.istockphoto.com/
http://www.naturepix.com/
http://www.pcphotoreview.com/galleriescrx.aspx
http://www.webshots.com/homepage.html
http://www.photonica.com/
http://www.digitalvisiononline.com
http://stock.d2.hu/
http://orangetrash.d2.hu/index2.html
http://www.graphxkingdom.com/index.shtml
http://freestockphotos.com/
http://www.freeimages.co.uk/