The Twitter ad executive also announces three test expansions and talks about the TellApart acquisition and DoubleClick deal. Ginny Marvin on December 10, 2015   Copyright Aaron Durand (@everydaydude) for Twitter, Inc. Over the past couple of years, Twitter has been investing in products for direct response advertisers to spearhead revenue growth. Twitter’s initial ad products — … Continue reading Exclusive: Twitter’s Richard Alfonsi Talks Direct Response Advertising Growth Efforts →