alternative tech

[betteroffdead]

Is anyone here familiar with any of these ecologically sustainable building technologies:<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
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rammed earth (http://en.wikipedia.org/wiki/Rammed_earth)<o:p></o:p>
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strawbale (http://en.wikipedia.org/wiki/Straw-bale_construction)<o:p></o:p>
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compressed earth blocks (http://en.wikipedia.org/wiki/Compressed_earth_block)<o:p></o:p>
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earthbag http://en.wikipedia.org/wiki/Earthbag_construction