Google Stats
“Here are some official stats for the most important Google services and software:
Google Search – 1 billion users (September 2010), 100 billion searches per month (August 2012)
Google Maps – 1 billion monthly active users (June 2012)
YouTube – 1 billion unique users every month (March 2013)
Android – 900 million activations (May 2013)
Chrome – 750 million active users (May 2013)
Gmail – 425 million active users (June 2012)
Blogger – 300 million monthly visitors (September 2009)
Google Translate – 200 million monthly active users on translate.google.com (April 2012)
Google+ – 190 million active users in the stream, 390 million active users across Google (May 2013)”