cellumap - Cellumap is a revolution in cellular coverage maps, in that the coverage maps here are not created...
Fast.com - Quickly test your internet speed with this fast-loading speed test powered by Netflix.
OpenCellID - OpenCelliD is the largest Open Database of Cell Towers & their locations. You can geolocate IoT & Mobile devices without GPS, explore Mobile Operator coverage and more!
SpeedOf.Me - SpeedOf.Me is an HTML5 Internet speed test. No Flash or Java needed!
wigle.net - WiGLE (Wireless Geographic Logging Engine)
Speedtest.net - Test your Internet connection bandwidth to locations around the world with this interactive broadband speed test from Ookla