A few places I like to follow to stay up to date with the busy world of desktop additive manufacturing.
Where do you get your 3D Printing news?
Broad deep and addictive. Will make a serious dent in your Facebook, twitter, etc. time.
Here's shot of my 3D printing rss feeds:
The tech crunch link is following their writer John Biggs, who I find is usually the one on top of 3D printing. If they had a 3D printing topic feed, I'd follow that.