I might have misunderstood - we have a lot of businesses who post in N&R advertising their stuff (as opposed to the Swap Shop, which is intended for individuals).
If it's just a normal store and not a sale or anything, it might not really qualify as "News" - but if you ever did have something newsworthy to post, that would likely be the place to do it.
Hopefully that's clearer, if you have any specific questions just
PM me
(or filbert above!)