Haiku Deck's roller coaster startup journey - which included a mobile game featuring Sir Mix-A-Lot and an award-winning presentation app - came to an end on Tuesday as the Seattle startup announced its acquisition by BookRags, a Seattle company that provides online teaching and learning guides. It's been quite the ride for Haiku Deck CEO and co-founder Adam Tratt, who helped launch the startup in 2011 as a social game developer called Giant Thinkwell. That celebrity-powered idea drew headlines and cache, but couldn't scale. The company quickly pivoted to a social video consumer site, but that also didn't have enough traction.... Read More