What communication routes I can opt while using zipBoard, to keep the team in sync?
zipBoard is all about communicating; so you have multiple options for that:
If you want a generic message to be broadcasted to all the collaborators then you can either add it as a comment.
If you want any collaborator to be notified for the message you are sending then you can mention the collaborator name using "@Collaborator Name" or can email to the specific collaborator using email collaborator option.
If you need to knock out a chat while you are on review board you can create a comment or task; where you can also mention anyone using "@Collaborator Name".