Everybody's Libraries

John Mark Ockerbloom

John Mark Ockerbloom is a digital library architect and planner at the University of Pennsylvania.

Besides this blog, he also has a Selected Works site that has a number of his papers and presentations.

You can send him email by writing to “ockerblo” at “pobox.upenn.edu”.  If you would like to suggest a book for The Online Books Page, which he edits, instructions for doing so are here.

In case you ever feel a need to catalog any of his work, his authorized name heading is “Mark Ockerbloom, John, 1966-“.

John’s Twitter posts are at @JMarkOckerbloom.


  1. How can I reach you by phone?


    Comment by rosalind young — November 21, 2009 @ 7:22 am | Reply

  2. I generally prefer not to get unsolicited phone calls unless they’re urgent. (If you do have an urgent need to reach me by phone, you can do so via my employer.)

    Comment by John Mark Ockerbloom — December 1, 2009 @ 10:22 am | Reply

  3. Hallo,

    first of all I have to apologise for this message. The subject about I want to learn is THE ONLINE LIBRERY, the roules how works this business because in Romania Europe where I liv it doesen’t exist.All I have fizically for the moment is a reserved domain on internet for an online weekle oe monthly publication, exclusive local information for Bucharest.Please be so kind giving me the essential aid. Many thanks,
    PS – perhaps you can suggest an online training or somthing similar

    Comment by Nora Roman — February 16, 2010 @ 8:26 am | Reply

    • Hello, Nora. I’m not sure exactly what you’re looking for, but there are a lot of online resources on digital libraries, the general topic you’re referring to. I have a listing of some of the free online books and journals on this subject here. (This is part of a larger public digital library of free online books that I maintain.)

      While this q&a isn’t really on-topic for this specific page, I’ll keep this answer, and the comment to which it’s replying, online here until I can craft a more detailed blog post, since the general issue of how to learn about and set up digital libraries in not-so-rich countries is certainly relevant to the scope of this blog.

      Comment by John Mark Ockerbloom — April 7, 2010 @ 3:53 pm | Reply

  4. This site used to have a list of books in the public domain. I used to access the sute by clicking on “Archives”. But it seems to have disappeared. What happened to it? Is it buried somewhere else? The index was alphabet or author based and had about 250-500 entries per page. So good for browsing.

    Comment by E. Espinosa — March 13, 2011 @ 12:08 pm | Reply

    • I think you’re thinking of The Online Books Page, which is also linked above. We have various ways of browsing that collection, including alphabetically by author. (Not all the books listed are public domain– some are copyrighted but have authorized free online editions– but most are public domain.)

      Comment by John Mark Ockerbloom — March 16, 2011 @ 8:37 am | Reply

  5. Hi John,

    Is there a way to sort the collection to be able to view only books that in the public domain and have no copyright issues that accompany their use or adaptation?


    Comment by Deepak — May 2, 2011 @ 12:51 pm | Reply

    • I’m afraid I don’t keep data on which books are in the public domain or otherwise deemed reusable (as opposed to those that are in copyright and online with permission, but without a license permitting reuse.)

      Comment by John Mark Ockerbloom — May 18, 2011 @ 7:34 am | Reply

  6. Dear Sir, could you please update the URL for The Witness by Jesse Glass to: http://wayback.archive-it.org/2269/20131025175215/http://www.ahadadabooks.com/content/view/45/56/ as the Ahadada Book site is now archived by the University of Maryland. Thanks so much and every best wish, Jesse Glass

    Comment by Jesse Glass — November 16, 2013 @ 12:01 am | Reply

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