The lives of Asana founders Dustin Moskovitz and Justin Rosenstein, from the early days of Facebook to building a billion-dollar startup (FB)

· Asana announced on Monday that it filed its S-1, the first step toward becoming a publicly traded company.
· The team productivity software company was started by Dustin Moskovitz and Justin Rosenstein, who both left Facebook in 2008.
· The cofounders worked with Silicon Valley elite at Facebook before starting Asana,...