Here is a short list of some things to check out to get a better understanding of what all this needle poking is all about.
Some great FB pages to check out:
Acupuncture in Medicine
Trust us, we're acupuncturists
And a few articles:
1) Intro to Acupuncture & Traditional Chinese Medicine http://www.acupuncturetoday.com/abc/
2) 5 most common (desirable) side effects of Acupuncture
3) What is Acupuncture All About???
4) The Taoist Philosophical roots of Acupuncture http://www.acupuncture.com/education/tcmbasics/yinyang.htm