Bulldog Reporter survey of 123 U.S. journalists:

From which public relations wire services do you see press materials on a regular basis?

PR Newswire, 66 %
Businesswire, 44%
Other, 11 %
MarketWire, 8 %
E-Wire, 7 %
US Newswire, 7%
PrimeZone, 2 %
Ascribe, 0%
None, 22%

Which PR wire services do you consider to be the most credible?

PR Newswire, 34%
Other, 17%
Businesswire, 10%
US Newswire, 2%
Ascribe, 0%
E-Wire, 0%
MarketWire, 0%
PrimeZone, 0%
None, 35%

Source: Bulldog Reporter.