You can see a variety of the videos and talks given by Steemians at the London Crypto Currency Show a few weeks ago at @promo-steem. This was organised by the promo-steem team who are independent steem users, not affiliated with Steemit inc.

I agree that there is a massive failing from Steemit Inc. to properly market and communicate about Steem with the world - however, at least some of us are doing the work.