Tutorials-Grasshopper

http://blog.de.rhino3d.com/2008/07/grasshopper-tutorial.html

http://blog.de.rhino3d.com/search?q=grasshopper

http://designreform.net/category/_tutorials-rhino/

http://paramod2.blogspot.com/search/label/grassopper

http://www.viddler.com/explore/baldino/videos/1/
http://www.viddler.com/explore/baldino/videos/6/
http://www.viddler.com/explore/baldino/videos/2/
http://www.viddler.com/explore/baldino/videos/3/
http://www.viddler.com/explore/baldino/videos/5/

http://www.designalyze.com/2008/07/07/generating-a-spiral-in-rhinos-grasshopper-plugin/

http://www.liftarchitects.com/journal/2008/10/12/grasshopper-tutorial-suspended-ceiling.html

http://www.wonderhowto.com/how-to/video/how-to-make-an-exponential-curve-with-grasshopper-in-rhino-255312/