American Archaeological Conservancy: www.americanarchaeology.com/aawelcome.html
American Historical Association: www.historians.org/index.cfm
Archaeology Magazine (online): www.archaeology.org
Civil War in America: www.civilwar.com; www.historyplace.com/civilwar; www.sunsite.utk.edu/civil-warhttp://history-source.com/acw/index.shtml 
Discover Our Shared Heritage online travel itineraries/National Parks: www.nps.gov/history/nr/travel/
Ellis Island Museum: www.libertystatepark.com/ellis.htm
Footnote (digital archive/historical documents partnership with National Archives) : http://go.footnote.com/nara/
Gilder Lehrman Institute of American History:  www.gilderlehrman.org
Historical Markers Database: www.hmdb.org
Library of Congress: www.loc.gov
Library of Congress - American Memory Project: http://memory.loc.gov/ammem/index.html 
Nanticoke-Lenni Lenape Indians: www.nanticoke-lenape.info/index.htm
National Archives & Records Administration: www.archives.gov/index.html
National Daughters of the American Revolution site/library: www.dar.org/library/default.cfm
National Museum of American History: http://americanhistory.si.edu/
National Parks Service (NPS) Guide: www.nps.gov/parks.html
 NPS/History and Cultural Resources: www.cr.nps.gov
National Register of Historic Places: www.nationalregisterofhistoricplaces.com/NJ/state.html
National Trust for Historic Preservation: www.nationaltrust.org
Organization of American Historians: www.oah.org
Philadelphia Historical Society/Research and Collections: www.hsp.org/default.aspx?id=2
Powhatan-Renape Indians: www.powhatan.org/history.html
Preserve America: www.preserveamerica.gov
Railroad Histories: www.rrhistorical.com/; http://tigger.uic.edu/~rjensen/railroad.htm
Ramapough-Lenape Indians: www.ramapoughlenapenation.org/index.php
Timeline of the American Revolution: www.ushistory.org/march/timeline.htm
Vintage Base Ball in America: http://wiki.vbba.org/index.php/Main/WhatIsVintageBaseBall.