Definition of a PURL:A PURL (a persistent uniform resource locator) is an intermediate WWW address, which directs users automatically to a specific Web address for a given resource. Once set up, a PURL never needs to be updated, though the URL to which it points may change.
The following are general guidelines for determining if a PURL should be created for an electronic resource. If you are unsure about a particular resource, or have a suggestion, please contact Sally Lockwood.