A Web classic: WhatIsMyIP.com shows you your IP address
When I wanted to write a post about WhatIsMyIP, the first thought that came to mind was about the commenters. I read all of your comments (thanks for your kind and useful ones!), and there are always those readers who are looking for the bleeding-edge stuff, and are disappointed when I write about things "everybody knows".
Well guys, this one's not for you – sorry! For those of you who did not know WhatIsMyIP.com, it's a very handy service for figuring out exactly one thing very fast: What is my "real" IP address right now?
This is something you're going to need every now and then, when troubleshooting network applications, trying remote control applications (although it's not needed as often these days), configuring certain games, et cetera.