Correction: CNET's SXSW 'big data' panel

This item originally misspelled Berin Szoka's first name and failed to identify him as founder of the think tank TechFreedom.

This item originally misspelled Berin Szoka's first name and failed to identify him as the founder of the think tank TechFreedom.

Click here to read the corrected post .

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The problem with Amazon Dash buttons

Limits on choice mean new shopping gadget won't click for everyone. Bridget Carey explains how the buttons work, and the rule changes for sharing your Prime perks with others.

by Bridget Carey