(out of the Top 100 US Newspaper by circulation) according to The Biving Group, checked by use of Internet features, design and usability.
1. The New York Times
2. The Washington Post
3. The Wall Street Journal
4. The Jacksonville Times-Union
5. The Philadelphia Inquirer
6. USA Today
7. The St. Paul Pioneer Press
8. The Atlanta Journal-Constitution
9. The Arizona Republic
10. The Columbus Dispatch
Would we see the same names on the list, if one or both of these conditions were lifted?
A.) The Top 100 US Newspaper by circulation
B.) Qualified News portal and News services must be a printed newspaper's Website
I doubt that this list of 'pNewspaper extensions' is the maximum you can, you should do to be successful in news business in our days.