I'm picking up as many as a half dozen Cuttyhunk Wifi signals on my macbook out here away from the mooring field. They vary in strength from 1 to 4 bars. You choose the strongest signal. Was actually enough to watch the better part of a movie off Netflicks during the complete and outer rain out we saw for the better part of 24 hours.
They clip you 10 bucks /24 hours. Typical rate, but this is real service.
We secured a Maine rental through several emails, "chatted" with our daughter in Geneva Switzerland, chased our son down in Savannah Ga., kept abreast of the weather, read the news, all from right here.