Users of the Google+ social network are now able to opt in to a facial recognition feature that will "prompt people you know to tag your face when it appears in photos," says a company engineer in a blog post. Unlike its main rival, Google+ has chosen to make the feature opt-in, reports The New Zealand Herald. "Of course, you have control over which tags you accept or reject," says the blog post. Google executives at an October Internet conference said the company will increasingly integrate its services into the Google+ network, which has acquired more than 40 million users since it became publicly available in September.
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