From the Associated Press last week:
HARRISBURG — A new poll shows that Pennsylvanians support natural gas exploration by a nearly 2-to-1 margin, but they're opposed when it occurs under state parks and forests.
The Quinnipiac University poll released Friday put support for Marcellus Shale drilling at 58 percent, with 33 percent opposed. Democrats are against drilling by a margin of 48 percent to 41 percent.
Almost 40 percent of the registered voters surveyed say they're less likely to vote for Republican Gov. Tom Corbett this year because of his intention to allow the extraction of natural gas from rock buried deep below Pennsylvania's state forests and parks, while still barring drilling from disturbing the forests and parks above ground.
The industry has brought jobs and economic activity, but it's also raised concerns about the environmental impact.
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.