Who is junebug? I've read some of her stuff other than that IDK her.http://en.wikipedia.org/wiki/IP_addressAn Internet Protocol address (IP address) is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing. Internet Protocol addresses are assigned to a host either at the time of booting, or permanently by fixed configuration of its hardware or software. Persistent configuration is also known as using a static IP address.
In computing, geolocation software is used to deduce the geolocation (geographic location) of another party. For example, on the Internet, one geolocation approach is to identify the subject party's IP address, then determine what country (including down to the city and post/ZIP code level), organization, or user the IP address has been assigned to, and finally, determine that party's location.
You can, for example, use a particular IP address (which is reported to websites every time you connect to them) to find the location where that user is connecting from - whether they be at the North Pole, in the Amazon Rainforests, or somewhere off the Kansas Turnpike, near the East Branch Whitewater River. As you can imagine, if two users log on to the same site, both their IP addresses will be captured and you can compare the two. Broadly speaking, similar addresses are likely to be from similar geographic locations, and two users with identical IP addresses can generally be assumed to be posting from computers attached to the same router.