Yahoo to host second mobile developer conference

A Yahoo ad sits at the exit of Interstate 880 and 5th Street in San Francisco, California, on Tuesday, July 14, 2015. A Yahoo ad sits at the exit of Interstate 880 and 5th Street in San Francisco, California, on Tuesday, July 14, 2015. Photo: Brandon Chew, The Chronicle Buy photo Photo: Brandon Chew, The Chronicle Image 1 of / 3 Caption Close Yahoo to host second mobile developer conference 1 / 3 Back to Gallery

Yahoo said Thursday it will host a second mobile developer conference, just six months after its first event in San Francisco.

The Sunnyvale company said the second conference will be held in New York on Aug. 26. The day before, the company will host a mobile hackathon, where developers will use Yahoo mobile tools.

“We’re excited to bring together this innovative and growing mobile community on the East Coast, and look forward to working with even more developers to help them build products that are better for users and more profitable for their businesses,” said Simon Khalaf, a Yahoo senior vice president.

Yahoo has been on a big push to prove that it is “mobile first.” The company recently launched a three-month regional marketing campaign in eight cities, with billboards and transit signs that advertise Yahoo’s logo and the words “for mobile.”

The company’s mobile ad revenue has been growing, but it still lags behind Google and Facebook. Yahoo will have a roughly 4 percent market share of U.S. mobile ad revenue this year, compared with Google’s 35 percent, according to research firm eMarketer.

Wendy Lee is a San Francisco Chronicle staff writer. E-mail: wlee@sfchronicle.com Twitter: @thewendylee