As one of the most widely used applications on Facebook, We're Related, is at the forefront of a new class of internet services that ride on the back of the popularity of social networks.
The service, which claims 15m active users each month, seeks to identify and link family members who are already on the network, even if they are only distantly related.
However, Facebook users who sign up for We're Related are given little idea how much of their personal information will be siphoned by the application, or – in the soothingly benign language of social networking – with whom this information will be “shared”.
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