Reddit mentions of Leviton 47606-AHT Advanced Home Telephone and Video Panel, White

Note: This statement only pertains to running cat 5e for computer networking, and not for audio video / other uses.

To write your house for a network, you'll run your wires like you would for telephone back to a central location. You can leave them hanging out of the wall but it's best to terminate them into either a structure wire panel, or into an X by Y wall plate. From there, you would use a switch / hub / router. At that point, you build your network as desired. If you want to know how to build a network, that's a much more involved answer.

An X by Y wall plate is just like any other wall plate in your house, but instead of having 1 or 2 RJ 45 jacks, would have multiple rows of them. A structure wire panel is kinda like a circuit panel for your low voltage stuff (structure wire). If can be a central hub for your Audio Video / Network / Phone systems, or any combination of the three. The advantage of a panel is it puts the wire and some of the equipment behind a wall, giving a cleaner look.

• Here's an example of a panel: http://www.amazon.com/Leviton-47605-140-14-Inch-Structured-Enclosure/dp/B00022749G/ref=sr_1_9?ie=UTF8&qid=1344121168&sr=8-9&keywords=levitron+panel
  
  
• Inside that panel you would puts rows of these were you would terminate your wires: http://www.amazon.com/Leviton-47606-AHT-Advanced-Telephone-Video/dp/B0007SN5KC/ref=sr_1_1?ie=UTF8&qid=1344121168&sr=8-1&keywords=levitron+panel. The one linked has hookups for your Coax (TV), Ethernet, and phone wire. You would build our your own panel based on your needs.