Historic Resources
- MACRIS (Mass. Cultural Resource Information System) and MACRIS Maps
- National Register of Historic Places Database
- Newburyport Preservation Trust
- Massachusetts Historical Commission (MHC)
- Society of Architectural Historians (SAH)
- National Park Service Preservation Briefs (excellent technical guidance on treatment of historic materials and properties)
- Repointing Mortar Joints in Historic Masonry Buildings and Historic Masonry and Mortar Advice for Homeowners and Contractors
- MHC's Guidelines on Photographic Documentation
- Association for Preservation Technology (APT)
- Advisory Council on Historic Preservation (ACHP)
- Essex County National Heritage Area
- Historic Preservation Tax Incentives
- Sanborn Maps
- Saving Windows, Saving Money: Evaluating the Energy Performance of Window Retrofit and Replacement
- Map of National Register Historic District, historic overlay districts, and surveyed structures
- National Register of Historic Places Inventory Nomination Form - Newburyport Historic District
- An Introduction to Section 106 of the National Historic Preservation Act