To search the archives of many national newspapers, open Dow Jones Factiva through the link above, and switch from the landing page to the search page:
From this page, you can use the publications field to limit results to a specific newspaper, such as New York Times, Washington Post, Wall Street Journal, etc. Several newspapers offer additional web-only content through our subscriptions, so you might want to include them as well, like this:
Add your search terms, choose a date range, and read your results.
How to access current headline news articles from a variety of papers
You can also access full text up-to-the-minute news and business, including access to the Wall Street Journal, New York Times, Washington Post, LA Times, Chicago Tribune, USA Today, Barron's, Forbes, and more.
Click the above link and click "Home" in the navigational bar at the top of the screen. This will open a listing of a variety of national newspapers in the United States, where you can read full-text articles. Most papers offer access to one to two weeks' worth of archived articles through this headline news view.