Here's a tip that may result in big finds in your family history research. If you are researching in a particular area, try the closest university library to your location of interest to see what special collections they may have. In many cases, their special collections are searchable online. And if they are not, you can send an inquiry to a research librarian to see what may be available.
I've recently received some great sources by checking online with Arizona State, the University of Arizona and West Kentucky University. I have some brick walls that I am hoping trying the university special collection route in the Cincinnati, Ohio area will help.
In one example, I'm tracking down my elusive third-great-grandmother Mary Ann Hise (or Haise), who married Samuel Oyler. I'm going to check the Special Collections with the University of Cincinnati, and also the Public Library of Cincinnati and Hamilton County, Ohio. I also need to check Miami of Ohio and neighboring Dearborn County, Indiana.
I'd be interested in hearing from others their own tips for getting to local special collections and newspapers when one is remote. Checking with local universities has worked well for me lately, and may for you too.