Flickr down? Now's a good time to check out MediaGoblin, a FOSS photo/video/audio/more sharing system you can run: http://mediagoblin.org
I can't even keep track of the stuff Yahoo is buying up and destroying. So if you didn't already have enough reason to switch to something better this is it. I myself do not have a use for such things yet due to my lack of real non-text-content sharing, but I'll certainly use it when the time comes.