Pilar dela Tierra (pstarr on Flickr) snapped a wedding party as it was swarmed by the Santas at SS Peter and Paul's Church in North Beach. Lane Hartwell (fetching on Flickr) caught Santa catching ...

But they got sidetracked with a spinoff project–the photo-hosting site Flickr–which Butterfield and his cofounder Caterina Fake, sold to Yahoo in 2005. Now Butterfield and his original team ...