Are you an inveterate remixer? I am.
Noting repositories of legally available content for remixing and mashing up. (Check for remix rights in your local jurisdiction.)
- Open Culture tracks “675 Free Movies, 550 Free Audio Books, 600 Free eBooks, 170 Free Textbooks, 300 Free Language Lessons…”
- Internet archive book images on Flickr
- British Library collection
- Old book illustrations lithograph curation is good, although you must pay $15 a month to get access to many full-res versions.
- NYPL collections - only a few images are full res; the rest are
- Library of Congress Picture collection
- University of Chicago overview
Clipart and icons
- https://undraw.co/ is one source. From the Hacker n00bs thread we also find
- Redwood data, A Large Dataset of Object Scans