URLs, PURLs & TRULs: Link Maintenance in the Web-accessible OPAC by Tom Tyler (Presented at Computers in Libraries '99)
http://www.du.edu/~ttyler/cil99/urlsetc.htm
Checking Links In Your Online Catalog by Ed Summers (for VIVA User Services Committee Spring 1999 Workshop (UVA)) http://www.lib.virginia.edu/~ejs7y/vivacat/web-train/url-checking.html
URL Checking with LinkBot & MarcXGen by Bill G. Kelm (Northwest Innovative User's Group Meeting, October 1999) http://library.willamette.edu/home/org/techserv/linkcheck/
Procedures for checking URL's in the Library Catalog (Willamette University, last modified 10/1/99) http://dewey.willamette.edu/home/org/techserv/linkchk.htm
MarcXGen can be downloaded at http://www.du.edu/~ttyler/freeware/marcxgen.zip.Policy Statement & Procedures for Cataloging Internet Resources (Fleming Law Library, University of Colorado at Boulder) http://www.Colorado.EDU/Law/lawlib/ts/man/intcat.htm
PURLs: What do I Need to Know? Working with PURLs in Your Local Catalog by Nan Myers and Arlene Weible (Presented at the 1999 Federal Depository Library Conference.)
http://www.willamette.edu/~aweible/dlc/
Linking Globally, Coping Locally: an 856 "Field Guide" by Karen Selden and Mary Strouse (AALL, 92nd annual meeting, July 1999) http://www.Colorado.EDU/Law/lawlib/ts/linking/
Finding URLs and PURLs:
Search the OCLC PURL Server
http://purl.org/maint/display.html
Search OCLC's Intercat Database
http://purl.org/net/intercat
Search the GPO PURL Server
http://purl.gpo.gov/maint/display.html
Browse GPO Marc Internet Resources (GMIR)
http://www.du.edu/~ttyler/mirintro.htmBrowse Electronic Titles (from GPO)
http://www.access.gpo.gov/su_docs/dpos/btitles.html
Browse GPO PURL Alert
http://www2.lib.udel.edu/godort/cataloging/alert/Please report changes and broken links to Mary Strouse: mstrouse@law.howard.edu