I went "war driving" for the first time last night. It's a really fun thing to do on a boring friday night. We wern't doing the hacking kind of war driving where you try to exploit and find the backdoors and weaknesses in a wireless network then post the GPS online for other hackers. We did it with my friends ibook and a 12V to 120V inverter. It was fun, we went up to one of our friends houses and got on his airport and could talk to him on ichat with Rendezvous. We used the app Macstumbler to find the open networks. It works pretty well. But the antenna on the ibook isn't very powerfull at all and turning the iBook just a few degrees or moving in from the dash to my lap would loose the signal. I really want a way to boost the signal. But most of the antennas out there are $100-$500 for med range ones. I never buy something I can make myself, so I invesigated home made 802.11 antennas. Here's a site that lists all the major homemade designs. http://www.saunalahti.fi/elepal/antennie.html Here are the most popular designs with full steps and photos. http://www.turnpoint.net/wireless/cantennahowto.html And to one design that claims to go 10 MILES w/ line of sight!!! Thats huge! http://www.wwc.edu/~frohro/Airport/Primestar/Primestar.html But most, like the 2 links above are pretty directional especialy the 2nd one. I'm looking for a somewhat uni directional antenna, the more beam spread the better. I don't really care about size just so it can fit in the back of an SUV. Hey it snows here so you got to have one. Even the cop cars are SUVs. Anyway can any one with some electronics background give me some advice or point me in the right direction. Remember I AM NOT using this for hacking or anything of that nature. Maybe even for good, call up the buildings that have an open network and tell them that they are open to hackers. Maybe even make this a Macrumors project Thanks Guys!