Request: More activity feeds

Description of your request:
Currently activity is mostly only viewable on a very broad scale (global feed on the dashboard) or a very narrow scale (individual books and users), with the only middle ground being the Following feed (which for most users is probably also quite narrow, if it’s not empty). It would be nice to see activity feeds implemented in more places around the site, to give users a sense of how popular a set of materials is and add more community discovery of other users.

Possible places for additional activity feeds:

Trello link: (leave in blank)