Reference
http://sketchupdate.blogspot.com
Plugins
http://www.crai.archi.fr/RubyLibraryDepot/Ruby/en_geo_page.htm
Models
6“ wye
http://sketchup.google.com/3dwarehouse/details?mid=14156d3c818d33ee976ca6ff2c7c6b04&prevstart=0
6” 45“
http://sketchup.google.com/3dwarehouse/details?mid=92ace17428d9fa89b2b03b6629bd8af8
6” blast gate
http://sketchup.google.com/3dwarehouse/details?mid=659101ca177e25e134183d39f6ba079f&prevstart=0
Woodworking
http://sketchupdate.blogspot.com/2009/03/woodworkers-3-sketchup.html
http://finewoodworking.taunton.com/blog/design-click-build
http://blogs.taunton.com/fw-designforum