Flickr at least has a decent revenue stream - http://www.zitzsolutions.com/2009/08/19/social-media-websites-who-is-making-what-insight-into-revenue-generation-5

Flickr at least has a decent revenue stream - http://www.zitzsolutions.com/2009/08/19/social-media-websites-who-is-making-what-insight-into-revenue-generation-572/ http://www.zitzsolutions.com/2009/08/19/social-media-website... The link is 1.5 years old, but (IMHO, and anecdotal) Flickr's growth has been steady since about then.