Google Analytics site overlay problems & alternatives

Shortcomings of GA site overlay: http://www.lunametrics.com/blog/2009/03/17/site-overlay-issues-google-analytics/   It counts pageviews, not clicks on particular links, according to this blogger.

Alternatives: http://www.lunametrics.com/blog/2009/03/27/alternatives-site-overlay/  Some services offer detailed click analysis, but they’re not free.

Existing tools that visualize web network data

heatmap_egHere’s a good list of automatically mined network visualizations, mostly leveraging Internet data.  Found it while searching for do-it-yourself network visualization tools which I could use to play with my own real network relations and embed in my blog.  We’re looking at ways to track link utilization on the virtual home website – the visualization show above from Crazy Egg is certainly a neat trick (if not actually analytically useful)