If imitation is the highest form of flattery, then Alex Macdonald, CFO of Toronto-based social media network Keek, must be blushing. Earlier this year, Twitter announced it would allow users to post 30-second videos on its site, mirroring the 36-second video status-updates unique to Keek. "We felt it was a validation of our business model," says Macdonald of the video length. "We’re not microform like Vine, or longform like YouTube — 36 seconds is enough time to tell a story, but short enough that people will watch it." The 29-year-old joined the TSX-listed company (which boasts more than 73 million users worldwide and two billion video posts in 2014 alone) in January 2014, and he played a vital role in Keek’s expansion into the US.