Those of you who have roots in North Carolina may be interested in this link...and even if you don't have roots there, the history recounted is fascinating.
The State Library of North Carolina has an impressive collection of digitized books and documents available on line. The topics include the influenza outbreak of 1918, various state publications, many family histories, and much more.
You can browse the collections or search them for key terms. Check it out at: http://digital-library.ncdcr.gov/cdm4/view/all.php