Edmund Gettier - Wikipedia entry on this thinker and his Problem. - http://en.wikipedia.org/wiki/Edmund_Gettier
The Gettier Problem - 2001 student paper by Sara Smollett, attempting through improved definitions to recover the definition of knowledge as justified true belief. - http://www.yellowpigs.net/index.php?topic=philosophy/gettier
FOLDOC: Gettier Problem - Detailed article by Luciano Floridi from this philosophical database. - http://www.swif.uniba.it/lei/foldop/foldoc.cgi?Gettier+problem
UMass Philosophy: Gettier - His official faculty page at the University of Massachusetts. Includes minimal profile. - http://www.umass.edu/philosophy/faculty/gettier.htm