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.
Columnist Tom Suddes of the Cleveland Plain Dealer explained how fracking or hydraulic fracturing came to Ohio after local communities had been stripped of their authority over drilling.
And all that happened with term limits in place on state legislators.
That means that few legislators involved in taking local control away from local communities in 2004 are still in Columbus.
That means that legislators were left off the hook for "long-term consequences of shortsighted decisions," Suddes wrote.
Click here for his column.