Book Excerpt from PC Magazine: Extending Wired & Wireless Networks: "Extending Your Wireless and Wired Networks

You can add additional wireless devices to your wireless network to enable you to cover more area, or to give you greater bandwidth over which to communicate. You can also extend your coverage by wirelessly connecting two or more LANs. Because very few people have completely wireless networks, nearly all networks start out as wired LANs to which wireless capabilities are added. Wireless networking can extend your network to places that are either difficult or impossible to run a wire to. Wireless links can serve as bridges between two LAN islands. Given the right antennas, you can create wireless network links up to 10 miles in distance with 802.11 technology. That makes wireless technology useful for bridges across a campus, a city, a county, or anywhere else where you need a long distance or temporary link."