You can try to:
Whatever your purpose, here are some links that can help.
How to Research Your House
A description of the many resources that you should consult when researching your house.
Guidelines for Photographing Historic Buildings
Recommendations on equipment, film, and techniques for photographing historic buildings.
Guidelines for Measuring Historic Building Floor Plans
Recommendations on tools, measuring techniques, and drawing techniques to use in developing floor plans of historic buildings.
How to Read an Historic Building
An online course, prepared by the National Park Service, to help you identify those elements or features that give historic buildings their unique visual character.
Historic American Buildings Survey (HABS)
A program developed by the National Park Service to document historic places. Search their site to view drawings and photos online!