I just finished writing my overview of the 3D printing industry.

3D Printing
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1

I just finished writing my overview of the 3D printing industry. Anything I missed?
http://joshondesign.com/p/articles/3dprinting/

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You could say something about mass production in 3D printing, like CartesioLDMP.

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You could add HIPS to the list of materials HIPS - RepRap.
You could also mention gcodeprintr a 3D Print Host Software for Android, its not very popular yet, but the community is growing steadily.