For those who don't know, Bookwyrm is basically a better, federated Goodreads. Because it speaks ActivityPub, you can subscribe to someone's Bookwyrm feed from directly in Mastodon and see the book reviews they post!

https://joinbookwyrm.com/

Also there are 2 spots remaining in the Bookwyrm patreon to pay $40/mo and support the project in a huge way *and* have @tripofmice run a server for you and 50 of your bookwormiest friends: https://www.patreon.com/bookwyrm