I was on twitter, and saw an promoted tweet about BitGold. Woow it was amazing, I got 20$ of free BitGold. I signed up, and then I realised it wasn't BitShares BitGold, but from some other companys BitGold.
But I think we can learn something from them, they are great at marketing, I inmediatly signed up. Not only because of the free money. There tweets are also really well thought out and composed. https://twitter.com/bitgoldinc
Maybe we can take some inspiration from them for the marketing of our BitUSD.