Organs of the Vedas

http://en.wikipedia.org/wiki/Vedanga
http://veda.wikidot.com/chandas-vedanga

http://www.indicstudies.us/Hinduism/Vedangas.htm
http://www.hinduwebsite.com/hinduism/concepts/vedangas.asp

https://www.youtube.com/results?search_query=Vedanga
http://www.slideshare.net/search/slideshow?searchfrom=header&q=Vedanga