A consideration of the issues involved in the provision and use of online legal resources, highlighting questions of authentication and verification of official sources. Powerpoint presentation and List of References from a talk given by Jules Winterton at the Organisation of South African Law Libraries (OSALL) Annual Meeting, 17 August 2007. Jules Winterton is the Associate Director and Librarian at the Institute of Advanced Legal Studies (IALS) and President of the International Association of Law Libraries (IALL).