Kurt Schlosser / GeekWire
Amazon takes stake in Grubhub and adds new Prime food delivery perk – Three years after giving up on its own food delivery service, Amazon is trying a new tactic, taking a stake in the U.S. delivery company Grubhub and offering free, one-year Grubhub+ memberships as part of a Prime Day promotion. Amazon announced the plan Wednesday in a deal with the European …