The permission required to access this page is either "Edit Club Website" or "Add Website News".
Website news items are shown on your "Latest News" page in date descending order (newest items first) as well as on your sidebar (for items set as "featured").
To create a news item, click the "Add News Item" button.
You can also choose to have your homepage display your latest news items by going to "Setup > Club > Club details" and clicking on the "Website Settings" tab.
This will replace your whole homepage with your latest news items list.
If you upload a featured image, that image will be displayed in your sidebar (if set to be a featured news item) above the intro text.