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UK newspaper The Guardian recently showed a compelling example of visualizing the time-varying intensity of Twitter messages relating to the World Cup during each of the soccer matches. Now, CNN tries its own way by representing the relative amount and focus of Twitter messages by different teams, players or topics.

Twitter Buzz [cnn.com] consists of a simple treemap-like interface with an interactive 24-hour timeline to capture a time-varying view of the most popular topics that relate to the current tournament. Various images are embedded and resized to illustrate the people or topics behind the content of the tweets.

See also Nike NBA Twitter Playoff, Winter Olympics Twitter Treemap, MTV Video Awards Tweet Tracker and MTV Movie Awards Tweet Tracker.