What is Batonnage? It is the wine making operation of mixing up the lees (dead yeast cells from fermentation) in the barrel with the wine to release the mannoproteins, improving the flavor, mouthfeel, and stability of the wine.
Did that impress you? How do I know this? A close friend, has fired up a site http://www.batonnagewine.com/
If you're looking to host a wine event in the bay area, check out this site, or just email firstname.lastname@example.org and ask them your wine questions.
In particular, check out the blog for helpful and timely tips. My favorite for 2009 - Batonnage's take on the best value wines