In the book, Scott uses the example of Joe Payne of Eloqua, who instantly blogged after hearing that a competitor was acquired.

FORBES: How to Make Twitter Pay Off With Media Coverage

The others are Leicester duo Anthony Allen and George Chuter, Wasps pair Joe Worsley and Tim Payne, Gloucester's James Simpson-Daniel and Paul Doran-Jones, Saracens wing David Strettle and Harlequins flanker Chris Robshaw.

BBC: England's Tom Croft wary of 'rampaging' Springboks

CNN's Ed Payne, Greg Botelho, Joe Sutton, Devon Sayers and Dave Alsup contributed to this report.

CNN: Northwest heat endangers crops