Author Archives: John Mark Ockerbloom

About John Mark Ockerbloom

I'm a digital library strategist at the University of Pennsylvania, in Philadelphia.

Invitation to participate in a new project: Help open journals’ deep backfiles

As I’ve noted here previously, there’s a wealth of serial content published in the 20th century that’s in the public domain, but not yet freely available online, often due to uncertainty about its copyright (and the resulting hesitation to digitize … Continue reading

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Everybody’s Library Questions: Copyright and advertisements

My previous post answered a reader question about how to determine whether a newspaper (or other serial issue) was under copyright or not.  (More details about the process can be found in our guide “Determining copyright status of serial issues”.)  … Continue reading

Posted in copyright, serials | 2 Comments

Everybody’s Library Questions: Newspaper copyrights, notices, and renewals

Because I blog about  copyrights for serials, I occasionally get questions in comments to my posts about determining what exactly is copyrighted in those serials.  I’ve been slow to answer them in the comments threads, partly because some of them … Continue reading

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More and better copyright data online for serials and books

It’s getting easier over time to find and use data on copyrights, and thereby to find and make use of materials in the public domain.  Here’s a quick update on what’s new and what’s coming, in my projects and elsewhere. … Continue reading

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Public Domain Day 2019: Welcome to 1923!

Early this morning, a full year’s worth of published works were welcomed into the public domain in the United States for the first time since 1998. Hundreds of thousands of works from 1923 either joined the public domain here, or … Continue reading

Posted in copyright, open access, sharing | 2 Comments

Public Domain Day advent calendar #31: New Hampshire by Robert Frost

…for destruction ice Is also great And would suffice. So ends “Fire and Ice”, one of the more than forty poems included in Robert Frost‘s 1923 Pulitzer Prize-winning collection New Hampshire.  Frost’s short poem uses ice as a metaphor for … Continue reading

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