802.11b  • Most popular standard for wireless networking
• Known as Wi-Fi
• Runs on three channels in 2.4GHz, unlicensed spectrum
• Shares spectrum with 2.4GHz cordless phones, microwave ovens and many Bluetooth products
• Transfers data at up to 11 megabits per second per channel, at distances of up to 300 feet
• Interference issues: In crowded 2.4GHz frequency, people may not be able to Web surf over a wireless network if they're using the microwave oven or using a 2.4GHz cordless phone at the same time
 802.11a  • Also known as Wi-Fi
• Runs on 12 channels in 5GHz spectrum in North America, reducing interference issues
• Transfers data up to five times faster than 802.11b, improving quality of streaming media, and provides extra bandwidth for big files
• Is not interoperable with 802.11b, meaning data sent from an 802.11b network will not be accessed by 802.11a networks
 802.11g  • Runs on three channels in 2.4GHz spectrum in North America, the same as 802.11b
• Has the speed of 802.11a, up to five times faster than 802.11b
• Is more secure than 802.11b
• Is interoperable with 802.11b
 802.11i  • Will provide security protection for 802.11 specifications
• Is still being finalized by the IEEE, but is expected in September
• Will be interoperable with the current, but temporary, Wi-Fi Protected Access (WPA) specification, which is a subset of 802.11i