On posts that exceed the first page, it would be very nice to have the numbers, like at the bottom, at the top as well, that way I don't have to scroll through all of the posts I've already read to get to the next page.
Belonging to several groups it would be extremely helpful, as some groups are more active then others, to have a different color text to the group name when a new post has been created so that you can easily see which group has had an update since your last visit.