I love old newspapers and this one is great if you have any family or ancestors that lived in its coverage area between 1841 and 1900. The Brooklyn Public Library has several digital collections, but I think this one is worth mentioning because the paper was published from 1841 to 1955, then for a short time from 1960 to 1963. So far only phase one is complete covering the period between October 26, 1841 to December 31, 1902. That's more than sixty years worth of news from Brooklyn. This paper has thousands of obituaries and seemed to have some in every issue of the paper under the heading of "Died." Be patient the search engine is a bit slow.
Here's the link to the collection: