Mary Baker added a long and informative comment to my original post, Building Excitement, which talked about how blogging the inventory levels of her various fast-selling/limited-production wines increases sales velocity by building excitement.
As I said in an e-mail reply to Mary, another answer is just an RSS feed for "things we're running out of". For example, the feed would be updated anytime a vintage got down to 10% remaining (or some other arbitrary level).
The best thing about doing this blog is that it puts me in touch with all the smart winery people out there who are willing to share their knowledge and experience. Mary is smart. Go read her comment. And feel free to add some of your own.