When Is Next Google Dance?

there is really no way to tell but hopefully this will give u some info

http://www.seocompany.ca/pagerank/page-rank-update-list.html

google is not going to tell you when because if they did, it would be like Jesus telling you when he will come back.  Consequently, you would do everything to keep your house in order.  It is based on an algorithm that they can tweak whenever they want.

Bottomline: Get your house in order, so to speak, and you won't ever have to worry about when the next dance is.

I hope this helps.