With changes: I really like the idea of being able to see who's in a filter (as I forget all the time, sometimes embarrassingly), but in terms of the proposed implementation, I'd rather see two changes:

- go directly to the list for that filter, not to the manage filters page (that list page should have a link to the main manage filters page, as well as one back to where I came from); after all, I'm in the middle of a specific workflow seeking info about that specific group and not the whole filtering process.

- not a full new window, as I find them horrible and loathesome. However, something that clearly looks and behaves like a help pop-up or the like without taking over the screen would be fine.