projects often depend on each other. Thos dependencies could be good to know and display, also to show which projects have most influence on other projects.
Sometimes projects have a part-of relationship.
As an example, it could be good to have an entry for the whole apache foundation with the aggregated stats from all its projects.
+1 for project hierarchy
Copyright © 2013 Black Duck Software, Inc. and its contributors, Some Rights Reserved. Unless otherwise marked, this work is licensed under a Creative Commons Attribution 3.0 Unported License . Ohloh ® and the Ohloh logo are trademarks of Black Duck Software, Inc. in the United States and/or other jurisdictions. All other trademarks are the property of their respective holders.