CarnalNation

Dr Hans Rosling, a renowned Swedish health researcher, is know for presenting health data in amazing ways you've not seen before. At the last TED conference, he gave an incredible presentation on HIV in Africa and why the issue is far more complex and nuanced that you might expect. He's also made the data available on the very cool GapMinder site where you can interact with the graph (caution it's easy to spend a lot of time here.)

In his presentation, Dr Rosling argues that it's not the number of sex partners that you have that matters but the concurrency (i.e., how many partners over a short period of time) that increases the HIV risk.

Dr Roslings TED video has been on the web for a couple of months, but it's really not received the level of exposure it deserves.