-Virtual Private Network.
-Since this is in the Neopets Chat, you can use multiple acc's to login' and do things like secure items/accs/etc.
-Err, google is your friend but I would recommend proXPN if you are willin' to pay for it or try hotspotshield, ultrasurf, cyber ghost vpn, Tor Browser or just FroxyProxy for free first to familiarize yourself with it.
P.S. post these kinda things in the help section next time