Changes coming to Google Groups

Starting June 26, Google Apps users will see the totally new and redesigned version of Google Groups that offers a new and improved user interface, collaborative inbox, take and assign functionality, full multi-domain support, advanced search operators, new ways of viewing group content, and much more.
You can take a tour of the new Google Groups at http://support.google.com/groups/bin/topic.py?hl=en&topic=2459437&parent=9216&ctx=topic