The link doesn`t work.

The link to FlowingData.com is broken, it should be: http://flowingdata.com/2009/04/21/visual-representation-of-tabular-information-how-to-fix-the-uncommunicative-table/

Plus your OpenID is broken too: It generates the following error message:

Forbidden
You don’t have permission to access /openid/consumer on this server.

The link is broken:
http://www.datavisualization.ch/quicknotes/benjamin/%url%

@Gilmar, Christian & Moritz: Thanks for pointing out the broken link. I’ve corrected the url and beg your pardon for the inconvenience.