add information associated with a group title to indicate the date of the last entry in that group.
If I log into communities and select say Ideas, I am presented with a screen with a number of different groups where suggestions could be posted. However from this screen, I cannot determine if something has been posted since the last time I visited. If a simple date of the last posting in each group was included on this summary screen it would save me the time of looking in each group I am interested in if nothing has been posted since I last reviewed. I am not sure how difficult this would be to implement but it would certainly save me time if reviewing recent postings.