Your IP address is your address (location) on the Internet. Depending on your particular Internet setup, your IP address (IP is an acronym for Internet Protocol) may be static (doesn't change) or dynamic (changes each time you log on). Regardless of which type of IP address you may have, you should know how to find out what it is. Here is how......
Go to IP Chicken (there is a link in the sidebar - look for the chicken!), which displays your outside IP address.
NOTE: If you have a router, and I hope you do after reading my Top 5 Things To Do After You Buy A PC
post, then you need to be aware that you will not see your home network's private (inside) IP addresses at IP Chicken.
To find out your IP address, which is usually dynamically assigned and also usually a private address, such as 192.168.1.x, do the following:
On a PC
Go to Start...Run
At the cursor prompt, type "ipconfig" and you will see your IP address. If you should happen to see more than one IP address, you will, most likely, want the IP address associated with the Ethernet interface.
On a Mac
Go to Applications...Utilities
Click on "Terminal"
At the cursor prompt, type the following:
ipconfig getifaddr en0 (for an ethernet connection)
ipconfig getifaddr en1 (for a wireless connection)
Now you know your IP address. Congratulations!