i know the other day i was walking down the street in milwaukee and i saw that all the sudden my PDA was picking up a wireless signal, upon further investigation, i realized that it was the library's wireless signal (i was across the street so it didn't dawn on me right away) many libraries are completely open, just turn on your laptop or whatever. iirc some libraries get a grant to provide public internet access to the community that they are in... i think it has something to do with the people who cant afford a computer... if the library does have encryption, i would reccomend you NOT try to break in since the library is most likely a government (city) owned building, penalties would be worse than if you hacked into a home owner's wireless network or even a businesses...