There's still time today to come register to win a new iPad mini! Come chat with Nucor @ Booth 301S! #Greenbuild #GBexpo

Get this :in 2011, Nucor invested more than $51 million dollars on environmental projects!Come learn more @ Booth 301S! Greenbuild Advertising

1 more hour until day #2 Greenbuild. Don't forget to stop by our booth to learn some cool stuff & register to win a new iPad Mini! #GBexpo

Listening to the LEEDv4 experts at the Tweet Up Greenbuild Advertising #Greenbuild

Still 7 hours left to register for a new iPad mini @ Booth 301S! Greenbuild #Greenbuild #GBexpo

Come see our BIM demo @ Booth 301S and get a FREE USB drive! Greenbuild #Greenbuild #GBexpo

Hearing more #sustainability #LEED info at @EcobuildAmerica in DC

Happy New Year! 2013 marks USGBC's 20th anniversary - it's going to be a great one.

Happy New Year!!!

Steel is the material of the future. Join worldsteel's #steeldebate on 1/18 to find out more from steel leaders. goo.gl/XptEF

SRI's Jim Woods - Steel: The EnviroMetal - will participate in worldsteel #steeldebate, 1/18/13, 14:00 GMT. ow.ly/gTCs0

Wonder where the steel industry is going in the next 50 years? Ask the world leaders in the industry today at 1400 GMT at #steeldebate

When is the final #LEEDv4 language expected to be public?

When will the final credit language be available for #LEEDv4

How involved do you expect the local chapters to be with the rollout of #LEEDv4 ?

Many of the #LEEDv4 MR credits include calls based on "mass or volume". Who chooses? Why not just mass?

berkeley.k12.sc.us/news.cfm?story… fb.me/2Pird1orL

OH is working to create the healthiest schools in the country. SCR 25 is threatening that. Act now: bit.ly/1bzaIUS #LEEDWorksOH

Nucor's Jennifer Diggins discusses shale's boost on steel, manufacturing and sustainability: ow.ly/tWzYf

Last day exhibiting at the largest #EarthDay event in the country! #earthdaytexas