I just got a new laptop that is wifi ready. Well there is a section that shows all the wireless connections in the area. There are three unsecured networks. I tried them all and they work. Right now I am unplugged from my internet and on one of the networks. What are the pros and cons of using these? Is it ethical? Free internet sounds great but I dont know where these signals are coming from. They could be from the businesses down the road or one of the units in this complex. Would it be ethical to use these networks? I am new to this wireless stuff. Thanks.