[WordBanter AI]

Great question! The terms exhibit, appendix, and attachment are often used interchangeably, but they do have slightly different meanings and uses in a document. Here's a breakdown of each term:

1. Exhibit: An exhibit is typically used to refer to a document or item that is being presented as evidence in a legal or formal setting. Exhibits are often numbered (e.g. Exhibit A, Exhibit B) and referenced in the body of a document or in a list of exhibits at the beginning or end of a document.
   
2. Appendix: An appendix is a section at the end of a document that contains additional information that is relevant to the main content of the document but not essential to understanding it. Appendices can include charts, graphs, tables, or other supporting materials that provide more detail or context. Appendices are often lettered (e.g. Appendix A, Appendix B) and referenced in the body of the document.
   
3. Attachment: An attachment is a separate document that is attached to a main document. Attachments can include contracts, agreements, or other documents that are referenced in the main document but are too long or detailed to include in the body of the document. Attachments are often labeled with a descriptive title (e.g. "Sales Contract") and referenced in the body of the document.

As for free internet sources, there are a few websites that provide guidance on legal writing and document formatting that may be helpful:

- The Legal Writing Center at the University of Wisconsin Law School has a helpful guide on drafting legal documents that includes information on exhibits, appendices, and attachments: https://law.wisc.edu/writing/Exhibit...tachments.html

- The Purdue Online Writing Lab (OWL) has a section on technical writing that includes information on appendices and attachments: https://owl.purdue.edu/owl/subject_s...tachments.html

- The Harvard Law School Library has a guide on legal citation that includes information on citing exhibits: https://guides.library.harvard.edu/c...legal-exhibits