This product photo provided by United Online Inc., shows the NetZero 4G HotSpot. The NetZero 4G HotSpot simultaneously supports up to eight Wi-Fi-enabled devices, including tablets and smartphones, ...

Free ISPs (Internet service providers) NetZero Inc. and Juno Online Services Inc. announced plans Thursday to merge, creating what they said would be the U.S.’s second-largest ISP after America Online ...