Current articles with forum for commentary can be found using these excellent searches.  Links will open search in new window and provided without endorsement of any third party.

http://www.freerepublic.com/tag/allegiance/index

http://www.freerepublic.com/tag/treason/index

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Here is a list of important source documents.  Additional documents and links may be added from time to time.

Magna Carta

The Mayflower Compact

The U.S. Declaration of Independence

The U.S. Constitution

The Bill of Rights.

You can read these and find much more at this outstanding resource knowledgebase and site:
www.Wallbuilders.com