InfoWorld: Collaborative knowledge gardening: August 20, 2004: By Jon Udell : APPLICATION_DEVELOPMENT : APPLICATIONS

Flikr is the hottest photo-album service on the net right now. I don't
use it though because I'm worried it will become a pay-for-service...

http://www.infoworld.com/article/04/08/20/34OPstrategic_1.html