I've been going on about Flickr like some kind of drooling fanboy, but I've come to a point where I actually feel better having Flickr handy. I look forward to the Last 24 Hours of Interestingness. The Interestingness rss feed pushed it over the top for me, and in the last week I've seen dozens of images that are absolutely amazing - which I would have never seen without Flickr and the community that has grown up around it.
Here's my Flickr favorites stream for 2005/09/12. Some fantastic shots in there...