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.
Anti-fracking advocate Dr. Deborah Cowden will speak in Portage County on Jan. 26.
Cowden, a physician from Jamestown in central Ohio and the head of the Greene County Medical Association, has been a vocal critic of hydraulic fracturing or fracking and its impacts on air and health.
She will speak at 7:30 p.m. at the King of Glory Brethren in Christ Church, 1667 State Route 303, Streetsboro.
For more information, call 330-472-8086.