Tag, you can see it!: using tags for access control in photo sharing.

Peter F. Klemperer Yuan Liang Michelle L. Mazurek Manya Sleeper Blase Ur Lujo Bauer Lorrie Faith Cranor Nitin Gupta Michael K. Reiter Tag, you can see it!: using tags for access control in photo sharing. 377-386 2012 CHI http://doi.acm.org/10.1145/2207676.2207728 conf/chi/2012 db/conf/chi/chi2012.html#KlempererLMSUBCGR12