This week: the US Federal Trade Commission asks a federal court to block Microsoft-Activision, Google may be forced to sell part of its ad business...

Yet another busy week for Google, who prepared to open its Confirming Gross Revenue tool to publishers and buyers. In a troublesome turn, however, the EU Commission ruled that the tech giant had engaged in anticompetitive practices and may need to sell part of its ad business.

In a similar blow, Microsoft's planned acquisition of Activision Blizzard felt the wrath of regulators as the FTC asked a federal court to stop the deal from closing. And, in gaming, Twitch scrapped its new advertising rules following backlash from streamers.

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