http://weburbanist.com/2008/07/07/10-amazing-light-graffiti-artists-and-photographers/

а если более обощённо, то вот: http://www.netlore.ru/

Не, даже вот так:
http://www.patrickrochon.com/
http://www.lichtfaktor.eu/blog/?page_id=3
http://www.lightmark.de/overview.htm
http://ericstaller.com/studio%20work/light drawings/?page=6
http://www.flickr.com/photos/m--r--i
http://www.lightbombing.com/
http://www.flickr.com/photos/alanjaras
http://www.burnblue.com/photos/lightpainting.php