This database offers full-text and full-image articles for newspapers dating back to the 19th century. For most titles, the collection includes digital reproductions of every page from every issue--cover to cover--in downloadable PDFÂ® files. This ongoing project has already completed The New York TimesÂ® The Wall Street JournalÂ®, The Washington PostÂ®, The Christian Science Monitor. The Los Angeles TimesÂ® and the Chicago TribuneÂ® are currently going through the digitization process.
You can request a free trial, but your best bet to use this service is to head over to your local library and find out if they have it.
Why isn't this simply available directly on the web? While you might be able to get PDF archives, ProQuest have fully indexed the text and provide a decent search engine over the archive.