After the code release and the exchange opening, a promotional idea might be an Auroracoin treasure hunt.
This works just like the Hidden Cash phenomenon of a couple years ago, duplicated in bitcoin:
http://www.businessinsider.com/hidden-b ... unt-2014-7
I think this would be a terrific way to get free media coverage, build buzz, and promote businesses associated with Auroracoin.
What made me think of this again was this article about Takara: http://www.newsbtc.com/2016/01/23/takar ... sure-hunt/