In the end, Facebook beacon resulted in a couple class-action lawsuits for Facebook and the partner sites associated with the service.

结果，Facebook beacon导致一对夫妇集体诉讼Facebook和其合作伙伴的相关服务。

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A FEW years ago, Facebook was forced to retreat from a new service called Beacon.

几年前，Facebook被迫放弃名为Beacon的新业务。

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Facebook re-branded the technology behind Beacon as an opt-in service called Facebook Connect in fall 2008 and launched it as a tool that allows Facebook users to sign into third-party sites using their Facebook IDs.

FORBES: Facebook To Announce Plans To Take Over The Internet With Facebook Pages

Beacon was quickly changed in order to give users an opt-in or opt-out button from the service.

BBC: Facebook offers control to users