Things are getting a bit interesting in fusion research in the last six months. A couple of interesting machines are getting close to break-even, or they've proved enough that their successors will hit break-even. This includes a revival of the old z-pinch machines and stuff from companies like Tokamak Energy and Helion Energy.

As always, the best resource for up-to-date info on fusion research is the Talk Polywell forums:

http://www.talk-polywell.org/bb/index.php