[Corpora-List] Corpora of commented documents

[Torsten Zesch]

Dear Colleagues,

I'm looking for corpora which contain natural language annotations and
comments on documents, e.g. textual annotations of PDF or HTML documents
created with Acrobat or with a Web annotation system.

Moreover, I would be very thankful for pointers to corpora of
handwritten free-form text or notes (digital ink).

Thanks,
Torsten Zesch