NewspaperCat

"The George A. Smathers Libraries Catalog of Digital Historical Newspapers (NewspaperCat) Web site http://ufdc.ufl.edu/hnccoll ... facilitates the discovery of online digitized historical newspaper content from newspapers published in the United States and the Caribbean."

FLA PASS

What is FLA - PASS?
In 2010 the Florida State Legislature passed into law a bill on electronic resource licensing that requires the Florida Center for Library Automation (FCLA), which supports the state university system, and the College Center for Library Automation (CCLA), which supports the state college system, to deem as authorized users of state funded e-resources all students in public secondary school “accelerated” programs. The program by which students have access to these resources is called Florida Library Access – Pass for Accelerated Secondary Students, or FLA-PASS.

There is a website with information about how to get your login and an explanation of what databases are available:  http://www.fla-pass.org/

Census data

historical data from the US Census of population and housing is available at http://www.census.gov/prod/www/abs/decennial/index.html (1790-2000)

old magazines

Google books has older magazines like Life fully scanned, available, and free (at least for now) See: http://books.google.com/books or http://books.google.com/books?id=s1QEAAAAMBAJ&source=gbs_slider_gbs_user_shelves_1004_homepage