The Couple Behind ‘Dogs of Instagram’ Started It as a Pet Project and Now Have 4 Million Followers and a Successful Ecommerce Business Posted by October 4, 2017 Leave a comment on The Couple Behind ‘Dogs of Instagram’ Started It as a Pet Project and Now Have 4 Million Followers and a Successful Ecommerce Business The user-generated feed of dog photos has become a hashtag and, in a way, an online movement.