I first encountered the Heatmap visualization in CrazyEgg. At the time I thought it was a nifty way to draw attention to popular sections of a site. Today via Ajaxian, I discovered an interesting jQuery plugin - aptly named “HeatColor“, which brings heatmap style visualizations to tabular data sets. HeatColor is a great idea and I can see it being useful in a number of scenarios to help a user identify/highlight areas of concern/interest. I will certainly be using it instead of sortable jquery plugins.