Create a hub to house all communication pertaining to your work (see The Café): this can encompass updates, feedback, contributions, reference documents, etc… Relying on social media can fragment groups into hashtags and 'centralized networks based on technological preferences'—everyone speaks from their own space and is individualized.
'Subscribers' or 'followers' can create possibilities in how they respond to what you post, and 'forum members' in how they respond to each other. The latter encourages dialogue, activity, and serendipity without requiring you to be there.
One of the 100 steps to success.