Introducing a project

I've been an amateur game designer for over a year, but still don't have anything to show for it other than a few small incomplete projects. I've been working on my primary game for a few months, but it's still a ways away from being ready for release as a demo. As someone new to this community site, how do you recommend I begin to share or preview some of my game to begin developing interest? I understand I can't have a blog to post updates until I submit the game demo, but would still like some feedback/criticisms prior to that release. How do you recommend I go about introducing my game and posting updates on the progress for the community?

Thanks for your responses!
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