Create a system by which people can store, save, manage, etc, entries as they write them, and "publish" (add to journal) them only when satisfied with their contents. It should be stored server-side, not client-side, and should support multiple draft posts at a time.

You should be able to write an entry and schedule it for posting sometime in the future, and the post will appear in your journal at-or-near the specified time. You should also be able to schedule recurring posts: "post this text every Monday at noon", for instance.