In order to make it easier to track activity in Hypothes.is, I created a program called Hypothes.is Collector. The idea is that you can type in user name, a URL, a tag, or a group ID and click the button to see all of the related annotations. The program will create a new sheet with an archive of up to 200 annotations based on the search terms. It will then create a third sheet that will count how many of these annotations were made on each URL in the set by each user.
This seems like it could be an interesting tool for annotations in a classroom setting and is related to some of the broader Hypothes.is API tools.