I know steam could be a great boost for your game to become "known".
Any ideas on kickstarter/indiegogo etc.
Steam/Kickstarter as marketing tools:
Greenlight - absolutely.
Kickstarter - yes, but in case of "success" you have to finish and deliver what you have promised. If you have never fully finished and released a game before, its probably a bad idea.
Social media presence is also a good thing.(maybe not Facebook and the Youtube comment section ...but Twitter:))
In your question(s) you dont say anything about what phase of the development your game is in. You only have concept art/ideas, you have a beta, you have a finished game, a playable demo, a previous version? Do you have games that people already know? How long till the game is finished? - if it has much time to go, you can use the dev process as a marketing tool(see IndeDB/Desura). ...consider things like these. ...otherways its more like lamenting about marketing rather than coming up with a concrete plan for an actual game.