Some sources pertinent to solar house history that are available on the web, ordered roughly by the narrative structure of the book:
**new April 2014
*new March 2014
General Period Sources
1948: Geoffrey Baker & Bruno Funaro book Windows in Modern Architecture; section "Solar Heat"
1951 HHFA report: Climate and Architecture: Selected References
1952: "The Possibilities of Solar Energy" from Resources for Freedom (Paley Commission report)
1953: Palmer Putnam book Energy in the Future (full text)
1954 UNESCO report: "Report on the Sources and Uses of Energy in Arid Zones" (pdf)
1955 Mechanix Illustrated article: "Hot News about the Sun"
1955 Popular Science article: "New Sun Furnaces May Cool Houses, Too"
1956 University of Kansas bulletin: Natural Light and the Inside-outside Heliodon
1958: Groff Conklin book The Weather-Conditioned House (full text)
1959 Richard C. Jordan paper: "The Future of Solar Heating"
George Fred Keck and his circle
1933: House of Tomorrow booklet (pdf)
1933 Alpha Rho Chi article (pdf; p.4) on House of Tomorrow
House of Tomorrow HABS documents at Library of Congress
House of Tomorrow archival images on Flickr. [Plan] [Exterior view]
1933 Museum of Modern Art press release (pdf)
1940 Alpha Rho Chi article (pdf; p.2) on Sloan House (from Chicago Tribune)
1944 Patent: Radiant Heating for Buildings
1944: Green's Ready-Made Homes brochure images [cover] [back]
1944 Popular Mechanics article: "Solar House Reduces Fuel Bills by One-Third"
1945 Popular Mechanics article: "Your Solar Home is all Wrapped Up"
1946 Central States Research report: The Story of Factory-made Houses (Keck; p. 7 & 12)
1951: Burnham Kelly book The Prefabrication of Houses (full text); discusses Green's Ready-Made Homes
1991: William Keck oral history
1995: Robert Bruce Tague oral history
Frank Lloyd Wright
1952: Jacobs house II in Built in USA: Post-war Architecture
1992: tour of Jacobs house II including Katherine Jacobs (link to video)
1993: City of Madison Landmarks nomination for Jacobs house II (pdf)
2001: National Register of Historic Places nomination for Jacobs house II (pdf)
1944-45 pamphlet: "Solar Houses: An Architectural Lift in Living"
1946 pamphlet: "Thermopane"
1946 patent: "Method and Apparatus for use in Designing Solar Houses"
1951: Sun Angle Calculator
Your Solar House (1947)
2008 Denzer paper: "The Solar House in 1947" (pdf)
Harwell Hamilton Harris, California house:  
Harris Armstrong, Missouri house; 2007 blog by Andrew Raimist:  
Stonorov & Kahn, Pennsylvania house: Archival Image Gallery
Article on Ruth Reynolds Freeman’s Vermont house
Henry N. Wright
1945 full text of Tomorrow's House by Wright and George Nelson; Chapter 15 is "Solar Heating"
2001 Joanna Kendig thesis: "The Ramirez Solar House: A Case Study of Early Solar Design" (pdf)
2008 Tom Solon article: "Rehabilitation of Henry Wright’s Ramirez Solar House"
Arthur T. Brown
Ball-Paylore house archival photos
2010 Denzer paper: "Arthur T. Brown: Pioneer of Passive Solar Architecture" (pdf)
Archival photos from MIT Museum
1940 Popular Science article illustrated with MIT house 1
1949 Popular Science article featuring MIT house 3
1949 The Tech article: "Solar House Occupied" (pdf)
1949 The Tech article: "Tech Family Finds Solar House Life Is Pretty Hot Stuff" (pdf; p.2)
1950 The Tech article: "Symposium Explores Possibilities Of Solar Heating For Houses" (pdf)
1950 The Tech article: "Heating Unit Shows Success" (pdf)
1957 article on MIT house 4: "The House that Stores the Sun"
1963 Hottel paper: "Collection of Solar Energy"
1976 Dietz & Czapek paper: "M.I.T. Solar House 2"
Löf house archival photos: 
1945 patent: Solar Heating Apparatus and Method
1946 Löf report: "Solar energy utilization for house heating"; also here
1958 Popular Science article: "Will Your Next House Get Its Heat from the Sun?"
1963 Löf paper: "The Heating and Cooling of Buildings with Solar Energy"
1969 Löf and Tybout paper: "Solar Housing Heating"
CSU Solar Village archival photos:  
June 1973 Congressional testimony
March 1974 letter to Congress
1974 Löf paper: "Solar House - Colorado State University"
1974 Löf paper: "The Colorado State University Solar Heated and Cooled House"
1974 Löf and Tybout paper: "The Design and Cost of Optimized Systems..."
September 1975 letter to Congress
1976 Löf paper: "Heating of Buildings with Solar Energy"
1978 Löf paper: “A Problem with Passive” from Congressional Record
2010 Denzer article: "Remembering George Löf" (pdf; p.7)
2012 Denzer paper: "George Löf: Denver's Solar Pioneer" (pdf)
George Löf house demolition
Original blog post (June 23, 2013)
Reprinted at ASES website (June 27, 2013)
Published in Solar Today (September/October 2013) p.53
Modified for GreenBuildingAdvisor.com (October 1, 2013)
Maria Telkes archival photos:  
Dover Sun House archival photos:      
1946 patent: Radiant Energy Heat Transfer Device
1949 Popular Science article featuring Dover Sun House
1951 patent: Composition of Matter for the Storage of Heat
1951 patent: Heat Storage Unit
1952 patent: Method and Apparatus for the Storage of Heat
1952 patent: Apparatus for Storing and Releasing Heat
1980 Popular Science article: "Solar salts"
*1996 New York Times obituary
2010 MIT Article: "The House of the Day After Tomorrow"
Bridgers & Paxton
1974 Frank Bridgers letter to Congress
1974 Stanley Gilman paper: "Solar Assisted Heat Pumps"
1978 Popular Science article: "Higher efficiency with solar-assisted heat pumps"
Raymond W. Bliss
Bliss house archival photos:  
1954 patent: Solar Water Heating System
1976 Bliss article: "Why not just build the house right in the first place?"
John Yellott / AFASE / Living with the Sun
1955 article: "A Report on the World Solar Energy Conference" (pdf)
1958 UNESCO Courier article: "Arizona Builds a Solar House" (pdf; p. 12)
1959 Yellott article: "Heat Your House with Solar Energy"
March 1974 Congressional testimony
1974 Yellott report: "Solar Energy Utilization for Heating and Cooling" (ASHRAE Handbook)
1976 Yellott paper: "Early Tests of the Skytherm System"
1976 Trombe paper: "Some Performance Characteristics of the CRNS Solar House Collectors"
*recent photo of original Trombe house
1977 article: "Passive Solar Design Using a Two-Story Trombe Wall"
1977 excerpt: "The Doug Kelbaugh House" from Passive Solar Buildings: A Compilation...
1973 Popular Mechanics article: "The house that has its furnace in the sky"
June 1973 Congressional testimony
November 1973 Congressional testimony
1974: letters & pamphlets submitted to Congress
**1977 HUD report on Solaris system
1979 Mother Earth News interview
Page listing numerous patents by Thomason
1973 Hay letter to Congress
1973 Mother Earth News interview
March 1974 Congressional testimony
1974 Hay paper: "How to Stop Cooling Loads before they Start"
1975 book excerpt: "Low-Cost Solar Technology---The Work of Harold Hay" (from Wilson Clark, Energy for Survival)
1976 Hay paper: "Atascadero Residence"
1976 Kenneth Haggard paper: "First Cost Economic Evaluation of the Atascadero Skytherm House"
1976 Philip Niles paper: "Modeling the Atascadero House"
2010 article: "In Memory of Harold Hay" (pdf; p.7)
1974 patent: Heating and Ventilation System
1975 patent: Solar Collector and Heating and Cooling System
1976 Saunders paper: "Weston Residence"
1976 Saunders paper: "Economics - One View"
1976 patent: Heating, Lighting and Ventilation Systems (Solar Staircase)
1978 patent: Curtain Assembly
1979 patent: Glazing Panel Assembly
1980 patent: Solar Collector and Heating and Cooling System
1980 patent: Solar Energy Fluid Heating System
1983: Christian Science Monitor article on Shrewsbury house
1983 Shurcliff book excerpt: Super Solar Houses: Saunders's 100% Solar, Low-cost Designs (pdf)
October 1973 letter to Congress
August 1975 letter to Congress
1975 book: Solar Heated Buildings: A Brief Survey (7th ed.)
1975 article: "William A. Shurcliff's Advice on Corporate vs. Independent Inventions"
1976 article: "Active-type solar heating systems for houses: a technology in ferment"
1979 book excerpt: Low-Cost Solar Heating -- 100 Daring Schemes Tried and Untried
1980 article: "Carrythrough Time in Passive Houses" (pdf) p.14
1983 book excerpt: Super Solar Houses: Saunders's 100% Solar, Low-cost Designs (pdf)
1973 Böer paper: "...The Delaware Experiment"
1973 letter to Congress describing Solar One house
1973 article: "Solar energy may achieve wide use by 1980s" from Congressional Record
1974 letter to Congress
The 1970s-80s: General Sources
1974 Popular Science article: "Can sunshine heat (and cool) your house?"
1977: Kaiman Lee book: Encyclopedia of Energy-Efficient Building Design: 391 Practical Case Studies
*1981 Buck Rogers article: "Taking the Mystery out of Passive Solar Design"
1981 New York Times article: "Assessing Solar House Architecture"
New Alchemy publications online
*Vintage Solar House Plans
The 1970s-80s: Reports
*1974 National Academy of Sciences report: Solar Heating-Cooling of Buildings: Current Building Community Projects
1975 National Research Council of Canada report: Solar Heating - The State of the Art (pdf)
1977 HUD report: Passive Design Ideas for the Energy Conscious Architect
1977 HUD report: Solar Energy and Your Home
1978: AIA research report: Solar Architecture (pdf)
1978: AIA research report: Passive Technology (pdf)
1978: AIA research report: Passive Solar Design: An Extensive Bibliography
1978: AIA research report: A Survey of Passive Solar Buildings
1978: AIA research report: Regional Guidelines for Building Passive Energy Conserving Homes
**1978 Congressional report: Application of Solar Technology to Today's Energy Needs
1978 DOE report: Building the Solar Home: Some Early Lessons Learned
1979 DOE report: The First Passive Solar Home Awards
1979 OTA report: Residential Energy Conservation (pdf)
1979 Alex Wilson report: Thermal Storage Wall Design Manual (pdf)
1980 SERI report: Passive Design: It's A Natural
1980 HUD report: Selling the Solar Home '80
1981 HUD report: New Energy-conserving Passive Solar Single-family Homes
1982 report: Path to Passive: Nebraska's Passive Solar Primer (pdf)
*1987 report: A Builder’s Guide to Iowa’s IDEAL Homes (pdf)
Recent Sources (historical)
2001 Adam Rome book chapter: "From the Solar House to the All-Electric House"
2012 Jim Laukes presentation: "Notes on the Taproots of Passive House: 1933-1984" (link to video)
2012 Harvard Business School report: “Power from Sunshine: A Business History of Solar Energy" (pdf)
2013 John Perlin article: "Seven of the Greatest Solar Stories Over the Millennia"
2013 John Perlin article: "Let It Shine: The 6,000-Year Story of Solar Energy"
2013 John Perlin article: "How Ronald Reagan Turned Out the Lights on Solar Power"
History of Insulation & Superinsulation
1944 Univ of Illinois report: "Fuel Savings Resulting from use of Insulation and Storm Windows" (pdf)
*1981 Popular Science article: "Super-insulated Houses"
1982 McCulley paper: "Energy Monitoring Results of a Superinsulated Passive Solar Building" (pdf)
1982 National Research Council of Canada report: Thermal Envelope Houses (pdf)
*1983 Dumont & Orr paper: "Low Energy Houses" (pdf)
1983 Brookhaven Natl Lab study: Blouin Superinsulated House
*2010 Martin Holladay presentation: "The History of Superinsulated Houses in North America" (pdf)