hotspots can be found using [crowdsourced] online mapping databases - allowing mobile applications to use this data to provide location-based hotspot finding
a hotspot is a location that offers [internet] access over [wi-fi] through the use of a router
"hotspots can be found using [crowdsourced] online mapping databases - allowing mobile applications to use this data to provide location-based hotspot finding" What is the definition of "hotspot"?