Below are links to association websites for various alternative materials and government sites for energy data.

Each of these associations present information that favors their particular products.  Some will have technical data, others will only have summary data for comparative purposes.

ICF:  www.forms.org

Concrete: www.cement.org

SIP: www.sips.org

Steel: www.steelframing.org

Logs: www.loghomes.org

Timberframe: www.timberframeinfo.org

Domes: No association sites

Bermed or Earth sheltered: Rocky Mountain Research Center: www.rmrc.org/pahs.html  This is a pure research center and they help support their research by selling their publications.  

Also on the Department of Energy's site: Designing Bermed Earth-Sheltered Homes

Other sites for energy, quick cost estimates:  These are free for our registered users:

Energy and Cost Estimators