Here are a couple of additional ideas which can make your life easier when configuring your particular Kosmos portal instance:
Combining Kosmos portlets with other portlets is a good practice to maximize the information effectively aggregated on your portal page. Other than the standard Kosmos portlets, you should consider using: Forums portlet, RSS portlet, Blog portlet, Poll portlet, CMS portlet and Wiki portlet. All these (provided you use them in the right way) should improve the communication both inside your community and with the external world.
All portlets support multiple monitored resources, and you can group them as you wish. For example, you can have a separate portlet for monitoring Spring, and another for monitoring ACEGI. It might make sense to group those as related packages together within a single portlet, and keep all the Struts-related packages in another portlet, and Tomcat-related packages in a third one.