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.
Hydraulic fracturing, or fracking, will be the subject of four programs in the coming week in Tallmadge, Ravenna and Kent.
A program sponsored by the Tallmadge League of Women Voters will be held from 6:30 to 8:30 p.m. Thursday in the auditorium at Tallmadge Middle School, 484 East Ave.
Speakers will include Jack Shaner, public affairs director of the Columbus-based Ohio Environmental Council, and state Rep. Anthony DeVitis, R-Green.
For more information, contact Marlene Fire at 330-633-3829 or Nancy Treichler at 330-633-6308.
There will be an informational program at 7 p.m. Wednesday in the auditorium at Ravenna High School, 6589 N. Chestnut Ave. (state Route 88).
For more information, call 330-274-8740 or 330-569-7863.
There will be an informational meeting at 7:30 p.m. Friday at the Kent United Church of Christ, 1400 E. Main St.
It is being sponsored by Concerned Citizens Ohio. Speakers include anti-fracking activists Ron Prosek and Vanessa Pesec.
The Kent Environmental Council will hold the program "Regulating Gas Drilling: Fracturing our Democracy" on Feb. 21.
The program will be held at Kent Presbyterian Church, 1456 E. Main St. There will be a potluck dinner at 6 p.m.; the program will begin at 7:15 p.m.