This is the fifth one:
Add context. Don’t assume people know what you’re talking about, especially if it’s obscure or technical. That doesn’t mean you need to rewrite five paragraphs of back-story for every new update to a news story — that’s usually a waste of time. But at least make sure that a good explanation of what’s going on is a click or two away.
At least for me there is a lot of good advice to improve.