AmEx Generated 10 Million Instagram Impressions in 2 Weeks With Guest ...

AdweekAmEx Generated 10 Million Instagram Impressions in 2 Weeks With Guest ...AdweekFor the past year, American Express has experimented with turning over its social accounts to influencers for short bursts of time to pick up followers and buzz. And it appears to be working—at least based on some results from a recent two-week ...