Google has subsidiary DoubleClick
On November 13, 2006, Google acquired YouTube for $1.65 billion in Google stock, On March 11, 2008, Google acquired DoubleClick for $3.1 billion, transferring to Google valuable relationships that DoubleClick had with Web publishers and advertising agencies.By 2011, Google was handling approximately 3 billion searches per day. To handle this workload, Google built 11 data centers around the world with several thousand servers in each. These data centers allowed Google to handle the ever-changing workload more efficiently.In May 2011, the number of monthly unique visitors to Google surpassed one billion for the first time.In May 2012, Google acquired Motorola Mobility for $12.5 billion, in its largest acquisition to date. This purchase was made in part to help Google gain Motorola's considerable patent portfolio on mobile phones and wireless technologies, to help protect Google in its ongoing patent disputes with other companies, mainly Apple and Microsoft, and to allow it to continue to freely offer Android.
has affiliate owns controls has a subsidiary company has a subsidiary corporation