'Google Hot Trends', and 'Ethereal'

Google Hot Trends

With Hot Trends, you can see a snapshot of what's on the public's collective mind by viewing the fastest-rising searches for different points of time. You can see a list of the current top 100 fastest rising search queries in the U.S. You can also select a recent day in history to see what the top rising searches were and what the search activity looked like over the course of that day.

http://www.google.com/trends/hottrends

Ethereal

Ethereal is a Network Protocol Analyzer and is used by network professionals around the world for troubleshooting, analysis, software and protocol development, and education. It has all of the standard features you would expect in a protocol analyzer, and several features not seen in any other product. Its open source license allows talented experts in the networking community to add enhancements. It runs on all popular computing platforms, including Unix, Linux, and Windows.

http://www.ethereal.com/