NC Department of Public Instruction resources are found at NCWISEOWL.ORG
Resources by grade level, help for professions, encyclopedias and a great deal more.
DPI has also produced an overview of NC history using maps of historical events (without verbal commentary), superimposed on our current map at www.lib.unc.edu/dc/ncmaps/interactive/tour.html
E-books on computers and iPads are coming
Free e-books can be found at Gutenberg.org, which provides copies of thousands of books that are no longer covered by copyright restrictions. Many of them are classics.