Shiraishi Mai (ex.Nogizaka46) has launched an official website as well as an official Instagram account. 

Shiraishi put an end to her nine-year career in Nogizaka46 on October 28 after her graduation concert 'NOGIZAKA46 Mai Shiraishi Graduation Concert ~Always beside you~.' On her Instagram account, she plans to share off shots and private photos. "Everyday things, work things, and other things that I want to share. I will be updating it in my own way, so please take a look at it when you have the time," she commented. 

In addition, a Twitter account has been launched by Shiraishi's staff, so make sure to check that out as well for the latest information.