circadian: adjective: noting or pertaining to rhythmic biological cycles recurring at approximately 24-hour intervals.
A photograph a day -- some made with an iPhone, some with a dSLR, some with a point-and-shoot. I've eased the rules on myself a little by just requiring a posting a day, not necessarily a photo taken per day.
If you're curious you can find me elsewhere as well.
And we're back to give this another shot in 2013!