I like a place that when there is an outage they make it into a contest:
Just print out this page and colour in the dots. When the site’s back up, take a photo of your creation and post it to Flickr, tagged with "flickrcolourcontest".
Team Flickr will pick a winner in the next couple of days, and that lucky duck will get a free year of Pro.
The Flickr blog says that they lost a temporary storage facility so some of the older photos, some 20 TB worth(!), are being restored from another location. Nothing was lost but it might be a little bit until things are back to normal in Flickr land. Until then I’m breaking out the crayons!