Tacit Knowledge - Introductory article by Karl E. Sveiby on this key Polanyi concept. - http://www.sveiby.com/Portals/0/articles/Polanyi.html
SPCPS - The Society for Post-Critical and Personalist Studies takes a special interest in the work of Michael Polanyi and related thinkers. With conferences and a journal. - http://www.spcps.org.uk/
Wikipedia: Michael Polanyi - Brief entry on the Hungarian scientist, from this openly-edited encyclopedia. - http://en.wikipedia.org/wiki/Michael_Polanyi
Polanyiana - Online journal of scholarly articles related to Polanyi's thought. - http://www.kfki.hu/chemonet/polanyi/
HYLE Biography: Michael Polanyi - Concise biographical essay by Mary Jo Nye. - http://www.hyle.org/journal/issues/8-2/bio_nye.html
ISCID: Michael Polanyi - Biography and bibliography of this thinker, from the International Society for Complexity, Information, and Design. - http://www.iscid.org/polanyi.php