The PURLZ Persistent URL Server version 1.2 is now available. See the PURLZ Downloads area to get your copy now. PURLs are Web addresses or Uniform Resource Locators (URLs) that act as permanent identifiers in the face of a dynamic and changing Web infrastructure. This capability provides continuity of references to network resources that may migrate from machine to machine for business, social or technical reasons. Source code documentation for this distribution is available as well. Join the community to help shape the next phase of this work.