Cebm.net

Bigfootlunchclub.com

Apastyle.org

Webcitation.org

Crossref.org

Easybib.com

Citationmachine.net

Zotero.org

Noodletools.com

Refworks.com

Getcited.org

Sciencewatch.com

Citelighter.com

Harzing.com

Sources.com

Wallpaperstravel.com

Fofweb.com

Livinginternet.com

Airfieldinformationexchange.org

Soc.mil

Biography.com

Archives.gov

Newspaperarchive.com

Ancientfaces.com

Historyorb.com

Rootsweb.com

Newsbank.com

Ellisisland.org

Cyndislist.com

H-net.org

Historynet.com

Thepeoplehistory.com

Theforbiddenknowledge.com

U-s-history.com

Eyewitnesstohistory.com

Genealogytoday.com

Wisconsinhistory.org

Accessgenealogy.com

Progenealogists.com

Ancientworlds.net

Historyworld.net

Awesomestories.com

Historians.org

Usgennet.org

Ancient.eu.com

Censusfinder.com

Aaanet.org

Docstyles.com

Myrevolutionarywar.com

Doaks.org