FCC makes ‘bill shock’ announcement: The Federal Communications Commission said Thursday that carriers have fulfilled their promise to give their customers proper notification of how much data they’re using to prevent a surprising bill at the end of the month.

The FCC estimates that about 97 percent of wireless customers across the country now receive alerts that warn consumers when they may be charged additional fees for voice, data or text usage.

Carriers participating in the initiative — which included the major four carriers in the country — had until April 17 to implement the voluntary bill shock measures.

Verizon posts strong earnings: Verizon Communications posted strong earnings for its first quarter, beating analyst expectations with a rise in wireless and broadband customers.

The company posted earnings of 68 cents per share on $29.4 billion in revenue. Verizon Wireless posted $19.5 billion in revenue — a 6.8 percent increase over the same period last year.

Twitter launches music service: Twitter announced Thursday that it is launching a music service that integrates with Apple’s iTunes, Rdio and Spotify.

The announcement had been expected following the company’s posting of a “Twitter Music” Web site last week, but made its official announcement on a company blog post Thursday.

The service builds on the work done by the audio discovery service We Are Hunted; Twitter announced it had acquired the service last week.

Senate holding Do Not Track hearing: The Senate Commerce committee will be holding a hearing next week to discuss Do Not Track proposals.

No witnesses have been listed for the hearing, which the committee said will address why industry stakeholders have yet to implement Do Not Track programs.

Committee chairman Sen. Jay Rockefeller (D-W.V.) said in a news release that he “plans to use this hearing to find out what is holding up the development of voluntary Do-Not-Track standards that should have been adopted at the end of last year.”