Data visualisation is a hobby of mine and a frequent topic of my posts. Frequent readers will know that I believe data visualisation to be invaluable to PR professionals in their craft, in their seeking to understand and exert influence.
IBM's awesome Many Eyes service has recently introduced a new way of visualising swathes of text ("unstructured data" in the words of the experts). An analysis they've called "Phrase Net". The easiest way to demonstrate what that means is simply to post up an example.
So I took the text from the last three months of featured posts on MarCom Professional and pasted it into Many Eyes and selected the Phrase Net visualisation, and hey presto...