Throughout the Olympics we created and updated daily our Olympic Dashboard. The dashboard includes medals information and a treemap visualization showing the number of medals with the size of the team.
This summer of sport has given us the opportunity (and great data) to produce some slick dashboards. Also take a look at our Roland Garros 2012 dashboard showing tournament data for both the men's and women's tournaments this year. We have also just started a similar dashboard for the recently commenced Paralympic Games.