This year I decided to no longer spend any money with Amazon. Over the years I’ve spent quite a bit at Amazon on mostly e-books, and some paper books.
I’m exploring other options of buying and acquiring ebooks. Today I decided to divert some of the money I would otherwise have spent at Amazon as donations to Standard Ebooks.

Standard Ebooks is a US based ‘low profit‘ organisation that creates ebooks from books that are (considered to be) in the public domain in the USA, and releases those ebooks into the public domain themselves.
It ensures works are available as ebook, also when there’s no commercial entity willing to market an ebook version.

Creativity builds on creativity, creators mutually influence each other across borders and across time. The public domain is a key societal boon. In my voluntary work for the Open Nederland association, the focus is on facilitating the use of Creative Commons licenses for makers in the Netherlands. Creative Commons allows you to set generic permissions for various types of use, thus allowing creative works to flow more easily, both to the public and to other makers.

Making public domain ebooks from public domain books is a similar act. It ensures that human creativity available in the public domain keeps growing, despite various publishing houses actively campaigning against it (or even aiming to limit library access to works).

Much better to spend money there than at Amazon.
I’m diverting about 25% of my previous Amazon spending to Standard Ebooks.

There are various kinds of RSS feeds that I can access as a patron, as well as an OPDS feed for their entire collection. Such an OPDS feed, like with podcasts, allows one to distribute books and book collections as feed payload. My Calibre library tool (as server) and various e-readers (as client) can work with such feeds.

There is one caveat: whether something is in or out of copyright, depends on your location as you download a work. Works can be in the public domain in e.g. the US, where Standard Ebooks is located, but still in copyright elsewhere and vice versa. Your location determines if you are breaching copyright when downloading a work.