How To Download All Your Google Data As Gmail, Blogger, Youtube etc

Figure: Google product list-download a copy

Today anyone keep his/her data on the web (i.e. clouding). Clouding has its own pro and cons. 

As a advantage of clouding, a authorized person can access his/her personal data any time and any location with a single click. But its major disadvantage is dependency at clouding.

What happen if clouding server is crash, there are no-backup, you can lost all your data and there are no options of restore.