I can't say I was beginning to lose hope, but many conversations I've had with premium publishers for this column were disappointing. Per those discussions, adoption of RTB seemed to be low among the top tier. So speaking with Gabe Gottlieb, co-founder and CEO of Adomic, was a tremendous relief. According to Gottlieb, premium publishers really are offering up their unsold inventory via RTB. "They may not admit it," he said, "but they're doing it. Why wouldn't they, rather than leaving it unsold?"