Here are some recent blog posts about Jatropha.
SandeepOzard’s blogpage a pretty thorough round up on the plant, by the looks of things
Clement Nyirenda’s Blog World an interesting look at things from an african perspective
The Energy Blog pretty solid stuff from the Fraserdomain
Jatropha: The Next Biofuel Craze
Energy and Electric Power news
WSJ online Blogs
Fuel for thought
So from this list I’d say that if you’re interested in Jatropha, and judging by Technorati, its a pretty small blogging field then the people you should be reading (apart from the Big Biofuels Blog, of course) are Biopact, Wired and the Fraserdomain.