I find that I like to look at live stream data visualizations and similar items. I used to know some pretty neat ones that would be constantly changing and very detailed. Can't remember where to find them, but I've seen cool cargo ship ones, wind ones, lightning and ddos attack attempt ones.
Please use this to share and talk about cool visualizations. Preferably live streaming.
http://www.intellicast.com/Labs/Maps/Wi ... CONUS.aspx -wind
http://www.flightradar24.com/ -Global Air traffic.