Disclaimery bit: Before you get stuck into reading this, I'd like to point out that this article is written by me-the-person, not me-the-GM, and is in no way indicative of or aligned with any official dA practices or policy. For the purpose of this article, I'll be referring to projects and contests as Events.
define your event's identity
If you or your Group is running an event, chances are you'll want to get the word out there in a mission to create buzz and encourage more people to join in. First of all, create an identity for your event. This means considering the following points:
What is the subject and/or medium(s)?
Who will be entering (new artists, Group members, professionals etc)?
How will entries be submitted (links to entrants own gallery or Group submissions etc)?
What is the timescale (deadlines, announcement of winners etc)?
Who is judging, and how