Steemdrive.com as a landing page is a good idea if you keep a mailing list or something similar. This way you can register and track statistics and present them in your future posts. As a dual purpose

I like the idea of advertising but without the referral program in place we have no way to measure the effectiveness of non-digital ad campaigns. How can we know if these ad campaigns are having an effect

I'm really bullish on Steemit now, even though I got in a bit late. Will there be marketing campaigns for Facebook? Also what about marketing in other languages such as Chinese? Japanese?

This looks great. How much longer until side chains are implemented? This could give Steem more potential than Ethereum with it's broken DAO. I have to say though, I don't like the idea of apps "living