If there are WiFi blank areas at your school, and what schools doesn’t have at least one or two, a high power wireless radio can help make the connection. Amped Wireless’s UA600EX High Power Wireless N adapter plugs into a regular USB adapter but it has a 600milliwatt transmitter, roughly triple the power of ordinary radios. That means that it provides top range and throughput, and can liven up dead spots. It works with the latest 802.11n networks, comes with a 26-foot cable and can be used outdoors for wiring up the playing fields or yard. It costs $110.