Original material from Louisiana Tech University ©2006 funded through a Summer Technology Grant. It is based upon Searchpath material © by the Board of Trustees of Western Michigan University which incorporates material from TILT, a tutorial developed by the Digital Information Literacy Office for the University of Texas System Digital Library,©1998-2004. This material may be reproduced, distributed, or incorporated only subject to the terms and conditions set forth in the Searchpath Open Publication License.