As a writer/researcher, genealogist, and history aficionado I just love researching news of yesteryear. Did you know that the New York Times has archived articles going back to 1851? The Times Machine will take you back in time to read yesterday’s news. They also have a blog called The Times Traveler that features yesterday’s news which highlights news from 100 years ago to the day (updated daily).
Here are some additional links:
International News Historical Archives, list of many links