Note that the Chicago Tribune, LA Times, NY Times, WSJ, and Washington Post can be searched simultaneously. Once in either of the databases, click "Select Multiple Databases."
LATE 2OTH CENTURY COLLECTIONS
These open access resources, from various instituions, are freely available on the Web and do not require using the off-campus login process. As a result, the search engines, interfaces and indexes, aren't as robust, or perhaps as user-friendly, as the commerical products in the library collection.
Internet Archive - newspapers are just one type of material IA has digitized and made available to the public.