If you don't hear back within an hour or two assume they're writing another riveting non-piece on Quora. Eg,
Question On Quora More Important Than Other Startups
Question On Quora More Important Than Other Startups
My company will never get covered by any of the major tech blogs even though it gets way more traffic than any other startup in the entry level jobs/internships space and is profitable. They don't like writing about content plays, so I've moved on and sought out publicity from other places.