I have been a Flickr user since 2007. Recently I admit to getting a little bored with it. Maybe there is a limit to image saturation, maybe because I am currently more engaged with my own work.
One of the good things that have come out of my time spent there is the discovery of LPV Magazine. An online and print magazine dedicated to contemporary documentary and fine art photography. LPV founder, Bryan Formhals has an entertaining article on wired.com which was originally published in 2010 on LPV.
Go read it.