As the widest service provider over internet services from google consumed by immense number of users world wide, and its a worthy feature from google to give full data from their server ( user specific) to all its users for download. THe Service is termed Google Take Out. With this service you can download data in +1s,Buzz,Circles,Contacts,Docs,Knol,Picasa Web Albums,Profile,Stream,Voice in simple steps.
For your copy head in to
follow on screen instructions