Some more GeoNews mashups:

• HeadlineMap.com: Point and News
  HeadlineMap is a great new Google Maps news mashup that combines current stories from many world news sources with a mapping interface. Depending on the region you are viewing news is being pulled from the largest regional news organizations and plotted f
  (tags: maps googlemaps mashup news geonews)
• Readers Edition/google » Google-Seite
  (tags: maps googlemaps mashup news readersedition)
• BBC News Maps – powered by backstage.bbc.co.uk
  (tags: maps googlemaps mashup bbc)

News aggregator with a somewhat questionable business modell but definitely nice visualization via treemaps:

• NewsIsFree: NewsMaps – in collaboration with The Hive Group
  NewsKnowledge and The Hive Group have joined forces to bring you News Maps, visual maps of the NewsIsFree headline database. News Maps allow you to quickly scan dozens of news articles and instantly understand what’s being reported all over the world.
  (tags: informationvisualization treemap news newsisfree)