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.
Chesapeake Energy Corp. CEO Aubrey McClendon will be the keynote speaker on May 15 at a meeting of the Ohio Chamber of Commerce in Columbus.
The event is being called "The Shale Energy Belt: Making Ohio Great Again."
The event is the annual meeting of the chamber and will be held at the Southern Theatre.
The day includes the annual business meeting at 3 p.m. , McClendon's talk at 4 p.m. and an awards ceremony at 5 p.m.
That will be followed by legislative reception from 5:30 to 7 p.m. in the Statehouse Atrium.
The registration fee is $125 a person.
For more information, call 614-228-4201 or check out www.ohiochamber.com.