If you are, then you need to meet this guy Chris Sanders at www.chrissanders.org
Practical Packet Analysis
Using Wireshark to Solve Real-World Network Problems
by Chris Sanders
May 2007, 172 pp.
$47.95 PDF and Paperback
and really understands Wireshark if you are into that kinda stuff. He is thinking about starting a User Group in Western Kentucky of you live in that part of the world. Chris is working on becoming an MVP, but wants to do more for the community first.
He has written a bunch of articles out on www.WindowsNetworking.com
As you can see from his website he just started using twitter too. I am also twittering. find me at www.twitter.com/technetguy who are you following on twitter?