This is quoted from @JoelR and I thought it be nice to share it with you.
A lot of admins launch their community too soon. Answer these questions:
- what are you personally interested in exploring? Do you have a unique background or special skills that you bring to the niche?
- do you have an existing audience of members OR existing content that would attract new members?
- what is your mission and objectives?
Answer those questions first, and then we can figure out the rest.