LinkedIn claim that its Privacy Policy and User Agreement covered this kind of data transmission.

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The case is also very different from allegations involving simply breach of a user agreement.

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MySpace could have brought a breach of contract claim against Drew for violating its user agreement (if it cared).

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Participation is subject to the terms of the Groupon Payments Merchant User Agreement, which may modify or discontinue the guarantee and the underlying services at any time.

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This would require you to take apart the box and keep in mind that if it was 'purchased' after March 1st, this must void some type of user agreement as you don't own the box but are leasing it.

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The agreement also requires Facebook to obtain user consent before it makes any changes that override existing privacy preferences and to prevent anyone from accessing user content within 30 days if a user cancels his or her account.

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At the heart of the system is eye-tracking software, making this agreement central to the future of display and user interaction.

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