OPDS

Online OPDS

Feedbooks

opds://www.feedbooks.com/catalog.atom

Internet Archive

http://bookserver.archive.org/catalog/

O'Reilly Media

http://opds.oreilly.com/opds/

The Pragmatic Programmers (?)

http://pragprog.com/catalog.opds

PragPub Magazine

https://pragprog.com/magazines.opds

Revues.org

http://opds.openedition.org/

arXiv.org

http://arxiv.maplepop.com/catalog/

老郁藏书阁

http://blah.me/opds/index.atom

CBETA 電子佛典

http://www.cbeta.org/opds/

书桌

http://idesks.me/opds