Try out these useful links
These several helpful links can provide you more information about sign language.
http://sgb-fss.ch/images/stories/d/pdf/090202sgb_gebaerdensprache.pdf
http://de.wikipedia.org/wiki/Natürliche_Sprache
http://de.wikipedia.org/wiki/Gehörlosigkeit
http://de.fifa.com/worldcup/organisation/media/newsid=1223701/index.html
http://www.verbalissimo.com/main/offers/languages/gestures/d_gestures.htm
http://www.focusfive.ch. Film, Video, Productions, Live Stream, Web TV.
