No I do not mean Google shares the data but what I meant is they collect the data and can be used later as well for many other reasons. Also See http://www.quitfacebookday.com/
yeah I like it but what i liked more is the share this button on that website oneway they says to quit facebook and they also say to share that article on facebook
I think that my data is more secure at Google than at facebook. I would just remind to the "master password" problem they had -> Every employee at facebook had super rights and could see any piece of data and could edit it as he wanted!