Printable outline maps are always valuable to homeschool families. Here is a selection of maps to meet a variety of geographical and historical needs.
Online Map Bank – A huge selection of maps categorized by country, region empire and event. Middle to high school level.
NASA Outline Maps- A downloadable .pdf file of continents and regions. Upper elementary to high school level.
Eduplace Outline Maps – Historical and geographical maps. Primary to upper elementary level.
US Dept. of the Interior printable maps- A variety of US maps, including some with climate or other science information. Upper elementary to high school level.
National Geographic Education – A beta (test) site from National Geographic featuring customizable, printable maps. Upper elementary to high school level.