Future Aria again! This is an extremely influential essay of about 50 pages written by Donna Haraway, an extremely accomplished academic in the fields of philosophy of science and women's studies who ended up teaching at UC Santa Cruz and apparently becoming the first tenured women's studies professor in American history. A Cyborg Manifesto was originally published in the 80s in a socialist academic journal before being revised and compiled in a 1991 book of her papers, Simians, Cyborgs, and Women. Despite how big of a deal she was, though, I ended up using her writing pretty sparingly, because the movement of cyberfeminism actually didn't have a whole ton to do with this highly theoretical and honestly semi-satirical essay. It definitely influenced Plant, at least, because she mentions it by name in Zeros + Ones, but what Haraway actually means by "cyborg" is a good deal less abstract, dreamy, and optimistic than what Plant does. Haraway actually writes about how the 21st century and the digital capitalism it entails simultaneously brings with it new and complicated forms of positive embodiment and equally novel, much more horrific vectors of oppression and violence.
In taking this more mature, even-handed approach, I actually think she correctly predicted a lot about our world of 202X, including what she mentions (and what I later reference) as the "homework" economy of endless, decentralized labor. This sober approach was not really what motivated the turn-of-the-millennium cyberfeminists, though, so its mostly only here for the terminological underpinning it provides. I personally think it's really worth reading, though, and that its suggestion of movement organization based on partial embodiment of identity, as well as deliberate alienation from the ways things "should be" both has some invisible influence that can be seen in Plant and is extremely relevant to today.