Procedural Ivy...

IronHawk

I saw this over on the Viz Depot and it looked pretty cool. Not sure how much use it is for gaming but its pretty interesting.

http://graphics.uni-konstanz.de/%7Eluft/ivy_generator/

MoP

Looks very interesting, might work very well for baking down to lowpoly. Thanks for the link!

CrazyButcher

been going thru lots of their papers, searching a topic for my diploma thesis (real-time rendering related environment stuff,not sure yet what exactly), and their stuff is neat. The head of their graphics department was at my university for quite some time, before being promoted and going there... sadly we hardly have any real top guys now