What can you do about your neighbor stealing your WiFi? You can do cool geeky things like serving the page upside down, or redirecting to a site they won't necessarily enjoy :) Or you can make money off of them. And get them to foot the bill for your connection.
You can purchase a $50 Linksys router from Silver Lining Networks and after signing up on their website, and registering your router, you will immediately start to get paid for ad impressions on your own network.
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