Google Exchange under the ticker symbol GGQ1. These ticker symbols now refer to Alphabet Inc., Google's holding company, In March 1999, the company moved its offices to Palo Alto, California, which is home to several prominent Silicon Valley technology start-ups. The next year, Google began selling advertisements associated with search keywords against Page and Brin's initial opposition toward an advertising-funded search engine. To maintain an uncluttered page design, advertisements were solely text-based. This model of selling keyword advertising was first pioneered by Goto.com, an Idealab spin-off created by Bill Gross. When the company changed names to Overture Services, it sued Google
Google China In 2013 Google stopped displaying warning messages that had shown up for mainland Chinese users who were attempting to search for politically sensitive phrases. Google's Internet mail service, Gmail, and Chrome and Google-based search inquiries have not been available to mainland China users since 2014. Google has maintained that it would continue with the research and development offices in China along with the sales offices for other Google products such as Android smartphone software. On 1 August 2016, Google China moved its headquarters from Tsinghua Science Park to Rongke Information Center. On 8 December 2016, Google held the Google Developer