Google Books is a great place to find books and old magazines, but if it is newspapers you’re after then check out the Google News Newspaper Archive. In the archive you will find hundreds of newspapers that have been digitized for reading online. You can search for a specific newspaper by title or browse for articles by date and title.
Applications for Education
The Google News Newspaper Archive could be a great resource for history students. One of the activities that I might have students do is select a significant event like a Presidential election and compare how it was reported by newspapers in different parts of the country.
H/T to Lifehacker.