The Library of Congress has continued to add many titles to its free Chronicling America website. I've linked 9 more titles on my Arizona page and 12 more on my District of Columbia page. Also on those pages, you'll see I've linked 14 titles (Arizona) and 37 titles (DC) from Genealogy Bank, a subscription site.
And I just added 80 titles to the New York page from the free Northern New York Historical Newspapers site (all they currently have listed!). I also added another title from the Hudson River Valley Heritage site. Thomas MacEntee has graciously agreed to collaborate with me, so you may see more New York titles on this page, soon!