But I want to draw your attention to Wikipedia's List of Online Newspaper Archives. It is comprehensive and it is world wide. It is a terrific list to look through and the links get you to the site where the online newspapers are available for you to search.
Unfortunately, it is difficult to see what is newly added or updated to that list. You can go to the "View History" tab, but that is expressed in a bit of "shorthand."
One of the contributors to this Wikipedia page, professional genealogist Janice Sellers, does a great job of providing the updates that she contributes and also adds a little more than just the name of the updated link. Her comments are very helpful and can be found on her blog.
I encourage you to check out her blog - "Ancestral Discoveries" and especially her posts about the Wikipedia Newspaper Archive Updates.
And you should be aware - that anyone can add updates to this list in Wikipedia. So if you have a verifiable link that is not in the list, you can add it. Wikipedia has certain rules to follow, but you can read all about that on their Help page about How to Edit.