Chesapeake Energy Corp,the Oklahoma-based firm is the No. 1 driller in Ohio.
Rig Count Interactive Map by Baker Hughes, an energy services company.
Shale Sheet Fracking, a Youngstown Vindicator blog.
The Ohio Environmental Council, a statewide eco-group based in Columbus.
Earthjustice, a national eco-group.
People's Oil and Gas Collaborative-Ohio, a grass-roots group in Northeast Ohio.
Concerned Citizens of Medina County, a grass-roots group.
No Frack Ohio, a Columbus-based grass-roots group.
Fracking: Gas Drilling's Environmental Threat by ProPublica, an online journalism site.
Pipeline, blog from Pittsburgh Post-Gazette on Marcellus shale drilling.
Allegheny Front, environmental public radio for Western Pennsylvania.
The Consumer Energy Alliance will hold the 2012 Pennsylvania Energy and Manufacturing Summit on Sept. 10 in Pittsburgh.
The event will run from 8:30 a.m. to 12:15 p.m. at the International Brotherhood of Electrical Workers Circuit Center, 5 Hot Metal St.
The summit is similar to CEA programs in Colorado and on the Gulf Coast.
The booming Marcellus shale in Pennsylvania is triggering the need to revisit energy development and its impacts on manufacturing, organizers say.
Both major presidential campaigns have been invited to participate.
The alliance is based in Houston, Texas.
For more information, go to www.consumerenergyalliance.org or call 713-337-8800.