Original Navigator material © 2007 by Oklahoma Christian University (OC). Navigator is based upon trek © by the Board of Trustees of Harding University which incorporates material from inflite, a tutorial developed by IUPUI © 2003 . Material also comes from Searchpath, a tutorial developed by Western Michigan University, © 2001-2002 and TILT, a tutorial developed by the Digital Information Literacy Office for the University of Texas System Digital Library, © 1998-2002. This material may be reproduced, distributed, or incorporated only subject to the terms and conditions set forth in the Navigator Open Publication License.