Hot topics is now live ! (we had blogged about this feature earlier). Hot topics are posts that have attracted a lot of replies from members of your group in the recent past. Topics that have at least 3 replies are considered. The topics are listed by recency, more recent topics on top. We’re hoping users would like this feature and use it to easily identify topics that might interest them.
Hot topics is available as a filtering option under the messages section. Users can now view messages, topics or hot topics. Do try it and let us have your feedback on this new feature.
– Yahoo! Groups product team