You should read the fine print before you accept their terms and conditions.
"By submitting, posting or displaying the content you give Google a perpetual, irrevocable, worldwide, royalty-free, and non-exclusive license to reproduce, adapt, modify, translate, publish, publicly perform, publicly display and distribute any content which you submit, post or display on or through, the services. This license is for the sole purpose of enabling Google to display, distribute and promote the services and may be revoked for certain services as defined in the additional terms of those services."
And by the way, they're already facing an anti-trust suit over the browser.
http://www.independent.co.uk/news/business/news/google-may-face-antitrust-challenge-on-chrome-917260.html
7 reasons for, 7 reasons against
http://www.pcworld.com/article/150585/googles_chrome_7_reasons_for_it_and_7_reasons_against_it.html