If you have not looked at the OpenDS Wiki in a while, you have probably missed something. Last time I looked, we had reached 548 pages.
One of those pages holds suggestions on what to do if you want to get involved. (https://www.opends.org/wiki/page/ToDo)
You are also welcome to get involved in the doc planning process. See https://www.opends.org/wiki/page/OpenDSDocumentationPlan for the current draft.
