I've turned on the "news" section for your stores. It's really just a re-skinning of our blog system, but gives you a simple way to put announcements and plugs of any sort onto your stores. You get to it by clicking My Stores on the left, and you'll see a "News" button for each store, along with a link to add a new item.
It accepts simple HTML codes, so you can use it to link to your other sites or put up banners or whatever. Like the blogs, UMD users can comment, and you are able to remove comments yourself. The "News" button will show up on your navigation bar once you have at least one published news article. The latest news item will automatically show up (with HTML tags subtracted) on your store homepage unless you turn that off in your store customization settings.
It's a first attempt, and I need feedback on all aspects.... looks, functionality, presentation, etc... Is it dumb to even call it "news?"