Hi Jason,

we at are working on this. We chosed RFDa Light syntax
instead of Microdata syntax.
Our first approach was pretty much the same as of OCLC: put the markup
into a distinct, table-like structure, which contains everything in
the object, and which is not visible for the users initially. Then we
started to inject the markup into the main, human readable section of
the page.
Our metadata schema is called EDM (Europeana Data Model, see, and contains less element
than MARC. We did not mapped all EDM elements for
vocabulary, but the most inmportant ones. We will go further with it
as times goes by. We also participate in the W3C's Schema Bib Extend
Community Group (

The most imortant problems we have faced so far:
- the Google's validator tool does not supports for namespaces
- all extractor/validator takes @rel attributes, even if it is for a
nofollow command, not a semantic enrichment
- what ID-s we should use? The URL of the page of the URI of the
bibliographical object/record?

Since our markup in only available on our test servers so far I don't
send you an URL where you can test it right now, but hopefully we will
launch it live in this month.


Péter Király
software developer

Europeana -
eXtensible Catalog -

2013/1/13 Kevin Hawkins <[log in to unmask]>:
> RDFa is emitted by HathiTrust's pageturner application.
> I believe that COinS support is available for all text collections delivered
> using DLXS on   Furthermore, those MPublishing text
> collections on that use a newer design templates include
> minimal RDFa and, for what it's worth, also follow the Google Scholar
> Inclusion Guidelines.  (We are migrating collections to the new templates,
> so the number will increase over time.)
> It's a shame that unAPI never caught on.  See previous discussions on this
> list about the virtues of unAPI over COinS.
> --Kevin
> On 1/12/13 12:18 PM, Jason Ronallo wrote:
>> Last year at the C4L conference, I gave a talk on HTML5 Microdata and
>> [1]. At the time I had trouble finding many libraries or other
>> cultural heritage organizations that had implemented anything.
>> Now there are big examples like OCLC, but anyone else done anything with
>> this? Have you implemented Microdata (or RDFa Lite) and since
>> then? Or have you come across other libraries or cultural heritage
>> organizations that have?
>> While there are some datasets [2] out there now where I might be able to
>> discover this information, I haven't had the chance to look there yet.
>> Thank you for any examples or leads.
>> Jason
>> [1]
>> I also published an article in the C4L Journal:
>> [2]