Let's explore DADGAD tuning.
http://guitarteacher.wordpress.com/2009/01/08/kashmir-dadgad-tuning/
http://hspeek.home.xs4all.nl/dadgad/examples.html
http://www.guitarlessonworld.com/lessons/dadgad.htm
http://www.guitarchordsmagic.com/guitar-chord-finder.html
http://www.celticguitarmusic.com/dadgad.htm
http://mystro2b.edublogs.org/category/dadgad/
http://www.thebradyacademyofmusic.com/blog/2011/06/26/DADGAD-chord-chart-PDF.aspx