google vs facebook

Google will no longer let other services automatically import its users' email contact data for their own purposes, unless the information flows both ways. It accused Facebook in particular of siphoning up Google contact data, without allowing for the automatic import and export of Facebook users' information.

Facebook, with more than 500 million users, relies on email services such as Google's Gmail to help new users find friends already on the network. When a person joins, they are asked to import their Gmail contact list into the social network service. Facebook then tells the user which email contacts are also on the social network.

In a statement, Google said websites such as Facebook "leave users in a data dead end." Facebook did not immediately provide a comment on Friday.

While Google framed the move as an attempt to protect its users' ability to retain control of their personal data on the Internet, analysts said the move underscored the battle between Google, the world's largest search engine, and Facebook, the dominant Internet social network.