These factors relate the author(s)/publishers of an article:
Authorship Factors
1=strongest factor; 7=weakest
OpEd Commentary:
“Fledgling tests of the author tag are showing good results” – Adam Audette
“I see the author tag as gaining in importance over the next three to six months. Start building this into your plans if you want to remain on top of Google News.” - AJ Kohn
“The original source tag helps publishers identify that they were “first to report” a story and can be an addition to rel canonical tags in providing a preference of a particular version of a story” – Eleanor Hong
“Syndicating articles to other sites can range from highly effective to deplorably ineffective. No easy answer here” - Adam Audette