There are a stack of great free ebook repositories available on the web, things like https://unglue.it/ http://www.gutenberg.org/ https://en.wikibooks.org/wiki/Main_Page http://www.gutenberg.net.au/ https://www.smashwords.com/books/category/1/newest/0/free/any etc, etc What there doesn't appear to be, is high-quality AACR2 / RDA records available for these. There are things like https://ebooks.adelaide.edu.au/meta/pg/ which are elaborate dublin core to MARC converters, but these lack standardisation of names, authority control (people, entities, places, etc), interlinking, etc. It seems to me that quality metadata would greatly increase the value / findability / use of these projects and thus their visibility and available sources. Are there any projects working in this space already? Are there suitable tools available? cheers stuart