Seeing someone smile often brings a smile to our own face. There's a site here:http://www.smilemyday.com/happy-faces/
that is collecting happy smiles from around the world. Drop by if you want a little lift to your day, or if you want to add your own smile photo! (the blog author is working on collecting 1 million smiles).
Is any of it great photography? Probably not. But it might make you smile...