Has anyone heard of blipfoto?
It is an online community website where users document their daily lives with a single photo and some text. I was introduced to it by a friend and it is totally addictive, almost as much as GN!!
It was founded in 2004 and reaches half a million people each day, all over the world. There is a rumour of the company's collapse but I believe it is being saved by a takeover.
It is quite challenging to find a subject of interest to post each day, and is another source of time wasting to explore!!