Whilst there's definitely value in Advertising (such as flyers in coffee shops) there are a number of other ways to market the benefits of Steemit to a wider potential audience. I'm sure Steemit's marketing team are taking care of the inbound marketing aspect. But we could help increase their reach on social media. Just a few status updates, likes and shares a week on other platforms could see the reach multiply by thousands. I'd suggest posting about Steemit on your own networks if you haven't already.
RE: Steemit Marketing Idea - 10,000 Flyers (Brainstorming Session, Please Help Out)