Sources: EU antitrust regulators plan to open a formal investigation into Google’s digital advertising business before the end of the year (Foo Yun Chee/Reuters)

Foo Yun Chee / Reuters:
Sources: EU antitrust regulators plan to open a formal investigation into Google’s digital advertising business before the end of the year  —  EU antitrust regulators are set to open another front against Alphabet (GOOGL.O) unit Google by launching a formal investigation …