A good introduction to persistent URL's is "URLs, PURLs & TRULs : Link Maintenance in the Web-accessible OPAC" by Tom Tyler. Or see my "Persistent Links, One Solution to a Common Problem"
Monday, July 15, 2002
Persistent URL
There is another PURL service available U-ID. This is a for profit organization. Seems to me the OCLC PURL system would be a better option for libraries. There is the need for these services. I just wonder why the OCLC service has not caught on more widely. The service there is free and so is the software to start your own service. When it first appeared I thought state libraries would establish PURL servers for their library systems and scholarly organizations would do the same for their fields. Hasn't happened.
