The category of cyber crime includes fraudulent online shopping activity, computer software service fraud, computer misuse crime, offences linked to computer viruses and spyware and computer hacking.

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Efficient Frontier also tracked a sharp increase in activity and spending on ads in Facebook, which it counts as a category separate from either search or display advertising.

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The Internet Activity Index (IAI) at the Online Publishers Association site has historically monitored category shifts in traffic month to month.

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