Wanna know more about wireless LAN? Checkout these two resourceful sites:
searchNetworking 802.11 Learning Guide
Still on the topic of WLAN, they are working out a standard to let gadgets roam from Wifi to cellular. When this standard is finalized, i have the feeling that its going to be a major competitor to 3G. And this definitely will hampens 3G deployment worldwide.
Other than that, Cnet featured Four IT trends to look out
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