Thanks to smartphones and the rise of apps like Snapchat and Periscope, vertical videos have gone from being an annoyance requiring a workaround to a popular and often preferred video file format. That shift has inspired a number of startups to focus on the medium, in an effort to carve out a niche in YouTube's shadow. The latest to join the fray is imDown, a mobile-first…
Read MoreSource: TechCrunch