This site advertises that it is ‘The World’s Largest Online Newspaper featuring over 120 million newspaper pages. The newspaper archive dates back from 1609 to the present. Plus the database expands by one newspaper page per second for a total of around 2.5 million pages per month. ‘
Much new material has been added to this useful website. You can still see 3 newspapers free of charge per day, but registration is no longer required. Some of the newspapers are in the Burney collection, but it is always useful to have another index to search. www.newspaperarchive.com