[link] about real-time (live) chart

fusioncharts
http://www.fusioncharts.com/widgets/LiveDemos.asp

skinning test
http://www.behindtheui.com/2009/03/flex-component-kit-cpu-black-hole.html

building server-side of ...
http://www.adobe.com/devnet/flex/articles/serverside_tourdeflex_dashboard.html#

chidester blog
http://chidester.wordpress.com/2007/08/23/flex-real-time-monitoring-app/