Or maybe:
Aspire 1000/1640Z/1690/2012 - Launch Keys above the keyboard
Aspire 16xx (General) the satellite-like launch button above the keyboard
Aspire 2000 Series (less Aspire 2012, See Above) - Button on the Front of the Laptop
Aspire 3005 on the lower right-hand side of your laptop
Aspire 3500 -
Aspire 5612 sliding button on the side of the laptop
Aspire 9302 the blue button on the left-hand side of the laptop
Aspire 94xx (General) the key found below the Lock key
Aspire One, in the lower right corner of the palm rest is a small strip with a picture of an antenna on it. An LED to the right of the strip lights to indicate the wireless is turned on.
Extensa 2000/2500 Series - Far Right launch button above the keyboard
Ferrari 3000/3020/3400/4000 - Button on Front of Laptop
Travelmate C Series - Far Left hot key and then choose WLAN from menu that appears