For the first time ever, Zefr's dynamic video-level whitelist targeting is available on in-stream advertising campaigns on Facebook. This first-of-kind product will feature dynamic video ... Continue reading Facebook enables Zefr's Dynamic Video-Level Whitelists for In-Stream AdvertisingThe post Facebook enables Zefr's Dynamic Video-Level Whitelists for In-Stream Advertising appeared first on The Zefr Blog.