What we're reading: 3D printing prosthetics

1.) Is there too much wind power in Texas for the national grid to handle?

2.) A "drastic" shortage of LEDs looms for 2010, one analyst says.

3.) The nation's first net-zero energy public school is set to open this year in Kentucky.

4.) With 3D printing, ordering a prosthetic may soon be as easy as picking a shoe color.

5.) The real-life botanical inspiration behind the flora in the blockbuster film Avatar.