There is a very informative article in Wired, discussing modern
bridges. If you did not catch the same article in the magazine, check
out the online version
http://www.wired.com/wired/archive/13.01/bridge.html
bridges. If you did not catch the same article in the magazine, check
out the online version
http://www.wired.com/wired/archive/13.01/bridge.html