Important url for wireless security

http://en.wikipedia.org/wiki/Wi-Fi

Comparison chart - Wireless local area network standards

http://en.wikipedia.org/wiki/IEEE_802.11

http://en.wikipedia.org/wiki/IEEE_802.11a

http://en.wikipedia.org/wiki/IEEE_802.11b

http://en.wikipedia.org/wiki/IEEE_802.11g

http://en.wikipedia.org/wiki/IEEE_802.11n

http://en.wikipedia.org/wiki/List_of_WLAN_channels

Wireless Standards - 802.11b 802.11a 802.11g and 802.11n

http://compnetworking.about.com/cs/wireless80211/a/aa80211standard.htm

Comparison of Wireless LAN Standards - 802.11a versus 802.11b

http://www.mobileinfo.com/wireless_lans/802.11a_802.11b.htm

http://en.wikipedia.org/wiki/Wireless_access_point

http://en.wikipedia.org/wiki/Wireless_LAN