Or even your desktop. I was online searching for what I dont remember, and came across this. http://frontdoorsoftware.com
It was a bit tricky to get set up at first, but I got it going. Basically its a program that you put on your pc. It installs in the Windows/System32 dir if its a Windows, they got a Mac version too. ANYWAYS, you set it up, and set up your account on their website. If your laptop is lost or stolen, you can login to their site, and mark your laptop as stolen and lock it down. It will display a COMPUTER HAS BEEN REPORTED STOLEN when it is on, or whatever message you want to show up. If not reported it will just show Owner info that you put in. It also, for the first ####### amount of users lets you have this map feature, where it tells you the IP of where your comp. is. It seems like a good software to try, so I'm trying it, I hope I never have to try the lost and lock down thing though. Basically I hope I never have to use this softwares features.