CLOCKSS Provides 2021 Annual Update

We hope this message finds you well! The CLOCKSS community continues to adjust to the unusual circumstances caused by the pandemic. It has reminded all of us that we live with risks every day; the long-term preservation mission of CLOCKSS seems especially relevant.

Community Satisfaction Survey

This year, for the first time, we would like to ask you to complete a short survey so that we can better understand how the community views our services. This should take 2-3 minutes to complete and is available at Thank you!

An invitation… or two

Please join us for one of two free digital preservation webinars on 9 September. We are keen to engage with and hear your needs and concerns, and we would like to share some insight into how CLOCKSS works and the challenges we face. There will be some informative lightning talks and an opportunity for discussion. We have tried to time the webinars to enable you to participate wherever in the world you may be.
To register at 7am BST please click here. To register at 10am EDT please click here.

If you attend the Charleston Conference in early November, please pop by and visit our small friendly team.


CLOCKSS is a not-for-profit joint venture between the world’s leading academic publishers and research libraries whose mission is to build a sustainable, international, and geographically distributed dark archive with which to ensure the long-term survival of Web-based scholarly publications for the benefit of the greater global research community.

In the last year, the CLOCKSS archive has grown by 7,674,767 journal articles, to 45.7 million, and by 58,039 books, to 257,550.

We have added 110 new participating publishers to our system. We are happy to work with publishers of all shapes and sizes.

We enjoy support from more than 300 libraries in 14 countries. These libraries recognize the crucial role that they play in the stewardship of the scholarly literature, and by supporting the CLOCKSS Archive, help to ensure their communities will have access to the resources that they rely upon.

Our revenues increased in 2020 and we made a small surplus. This is because more publishers and libraries see the value of our services, and we continue to look for ways to increase efficiency.

We are proud of our community governance, and our active Board of Directors comprised equally of libraries and publishers (

We continue to believe that the open source LOCKSS software is the leading preservation technology for scholarly content, with our globally distributed network of servers at top-flight libraries (

This year we transitioned between Executive Directors. Craig Van Dyck remains Senior Advisor to CLOCKSS one day per week through the end of the year and is succeeded by Alicia Wise. She has been active in collaborative initiatives between libraries and publishers including a past stint on the CLOCKSS Board.


CLOCKSS is a partner in the JASPER project. In scholarly publishing there is a long-tail of small peer-reviewed journal publishers. For example, there are over 6000 publisher accounts in the Directory of Open Access Journals (DOAJ) with only one journal attached to them. There are over 7000 APC-fee-free (“diamond OA”) journals in DOAJ that say they are not archived in a long-term digital preservation scheme. A team of organizations has come together to find a workable solution that will increase the number of these journals that are archived.

CLOCKSS is also a partner on projects led by David Millman, Assistant Dean of Digital Library Technology Services at New York University. These are aimed at improving the digital preservation of enhanced e-books including those published in the EPUB format.

And finally…

Please consider following us on twitter (@CLOCKSSArchive) or on LinkedIn (, and participating publishers or supporting libraries are welcome to download and use a CLOCKSS logo on your website with a link back to us.

If you have some digital preservation news of your own, please do let us know so we can help amplify it. Thank you!