Massachussetts Institute of Technology's Origami - OrigaMIT. This has some really good work created by its members.
And this comes from the collection of work created at MIT's fourth annual Student Origami Competition.
Here is some more interesting stuff.
These are Created by a team of designers, folders & paper engineers for the Folding Australia 2005 Convention. An idea by Darren Scott, which was eventually taken, up as a project & brought into reality by director Matt Gardiner.
Here are some wonderful models by Origami artist Guspath Go.
Upside Down Houses.
Rock, Paper, Scissors.
Creativity With Plastic Bottles.
Ramenskoye's Painted Houses.