I really don't know why I hadn't thought of doing this before....
Browse pages now have a new ordering mode: Heat. You can access this from the browse drop down menu at the top left:
Or you can select it manually in the search pane on any browse page.
Basically it uses the same value as the popular list on the front page, so you can search for currently popular comedy stories for example.
I've also added pages to group page comments, folder comments and group threads too. It needed doing for ages.
Estimated words read is also back. But it's only visible to yourself.