Andrew Shotland started a new web site devoted to just Google News Ranking Factors where he documented what he feels are the top ten positive ranking factors versus top ten negative factors.
Here they are:
The Top 10 Most Important Google News Ranking Factors:
(1) Category Authority
(2) Keywords in Headline and Page Titles
(3) Domain Authority
(4) Social Sharing of Article
(5) First to Publish
(6) CitationRank
(7) Unique Articles
(8) High CTR from Google News
(9) High Quality Content
(10) Use of Google News XML Sitemaps
Top 10 Negative Google News Ranking Factors:
(1) Duplicate Content
(2) Vague Abstract Headlines
(3) No Google News Sitemap
(4) Poor Quality Content
(5) Blocking Googlebot/Newsbot
(6) Slow Site and/or lots of 500 errors
(7) Poor CitationRank
(8) Low "PageRank" Domain
(9) New Site
(10) All Syndicated Content with the Same Title as the Source Site
For more information, check out the googlenewsrankingfactors.com.
Forum discussion at Sphinn.