All good ideas and something that I was thinking about myself. Time is a huge problem for me but I think we are ready to set up a marketing group and try to get funding from the dao. It's just a matter of who wants to take it on.
If you could get the right proposal in place it would provide funds for advertising, competitions, incentives users to market for you and fund a team to run the project.
I know what I would like to do with it but having the time and effort to put it together is another question altogether.
As for the suggestions above we do have a ggod few users covering twitter and reddit but I like the Q&A idea. It's a place that I haven't seen any effort put into so far and could be good for hive.
RE: A few useful ideas to supercharge your Hive awareness hustle online