LogMeIn Hamachi secure.logmein.com (Windows | MacOS | Linux)
Instantly create a free, peer-to-peer VPN connection between your computer and other people’s. Download the software, create a network with a unique name, give it to friends you want to join, and start sharing fi les with them—even your iTunes folder.
NetStumbler www.netstumbler.com (Windows)
Use it to detect any Wi-Fi network in your vicinity and see if it’s open for use, or just use it to troubleshoot your own.
PrinterAnywhere www.printeranywhere.com (Windows)
Share your printer with others over the Web; in turn, send jobs to other shared printers, no matter their location.