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The moment has arrived to see how CLOCKSS works.
The moment has arrived to see how CLOCKSS works.
As of today, the web-published content of the journal ''Graft: Organ and Cell Transplantation'' (SAGE Publications) has been exported from the CLOCKSS archive, and is now available to the world from two CLOCKSS hosting platforms at universities in Europe and the US. Released under a Creative Commons license, this content is free to researchers, students and the general public, without need of any subscription.
[[CLOCKSS_Works|read the Press Release]]
[[CLOCKSS_Works|more here]]

Revision as of 22:39, 30 January 2008

CLOCKSS: Controlled LOCKSStm.gif

A Trusted Community Archive

January 30, 2008


Researchers increasingly access journal articles online, but the real possibility exists that, due to natural disaster or human/computing failure, digital content might not always be available. Libraries and publishers have joined forces in an initiative called CLOCKSS*, providing leadership and the supporting technology, to ensure reliable, long-term access to scholarly e-content.

The moment has arrived to see how CLOCKSS works.

read the Press Release

January 29, 2008

Public Access to Journal, Graft, from CLOCKSS

The University of Edinburgh's EDINA data centre and Stanford University make discontinued SAGE journal, Graft, available to the world for free.

more here

December 18, 2007

How CLOCKSS Works: Ensuring Long-term Access to Digital Content

The CLOCKSS initiative is a partnership of libraries and publishers committed to ensuring long-term access to scholarly work in digital format. As more and more content moves online, there is growing concern that this digital content may not always be available. CLOCKSS addresses this problem by creating a secure, multi-sited archive of web-published content that can be tapped into as necessary to provide ongoing access to researchers worldwide *for free*.

There are many ways digital content may become unavailable, including when a publisher chooses to retire a journal. SAGE Publications, a CLOCKSS partner, recently announced that it would discontinue online access to its journal, "Graft: Organ and Cell Transplantation." This represents an opportunity to demonstrate how CLOCKSS responds to a "trigger event."

more here


Ensuring access to published scholarly content over time; a community-governed partnership of publishers and libraries working to achieve a sustainable and globally distributed archive.


CLOCKSS is a not-for-profit, community-governed, partnership of libraries and publishers. Presently seven libraries (six in the U.S. and one in the U.K.) and 11 publishers are participating in the CLOCKSS Pilot Program. Each participating library houses two "CLOCKSS boxes," computers which store and preserve materials to which the libraries do and do not subscribe, in their effort to build a comprehensive archive of web-based scholarly materials. CLOCKSS boxes, using free, open-source LOCKSS software, continuously monitor and self-correct the preserved content to ensure its authenticity over the very long term. When the Board determines a trigger event has occurred, i.e., the digital content is no longer available from the publisher, they will move the content to a hosting platform and the impacted content will be made available *for free* to the world. Once the CLOCKSS Pilot Program concludes in 2008, additional publishers and libraries are invited to join the effort to save web-published scholarly literature from disappearing.

CLOCKSS Board Members

One of the strengths of the CLOCKSS Initiative is that the founding organizations, top publishers and university libraries, share a long history of survival and a deep understanding and experience with long-term sustainability.

Libraries and Date Founded

  • Indiana University - 1820
  • New York Public Library - 1895
  • OCLC Online Computer Library Center - 1967
  • Rice University - 1912
  • Stanford University - 1891
  • University of Edinburgh - 1582
  • University of Virginia - 1825

Publishers and Date Founded

  • American Chemical Society - 1876
  • American Medical Association - 1847
  • American Physiological Society - 1887
  • Elsevier - 1880
  • IOP Publishing - 1874
  • Nature Publishing Group - 1869
  • Oxford University Press - 1478
  • SAGE Publications - 1965
  • Springer - 1842
  • Taylor and Francis - 1798
  • Wiley-Blackwell (1807 and 1897 respectively, merged 2007)

Reasons to Choose CLOCKSS