A Comprehensive Review of Health Benefits of Qigong and Tai Chi
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3085832/

The Intriguing Health Benefits of Qigong: The ancient Chinese practice shows promise in helping ease hypertension and depression
http://www.wsj.com/articles/SB10001424052702304373104579107190526946048

The National Qigong Association
http://nqa.org/category/articles/
Provides articles and research updates on qigong, qi, tai chi, and its impact on various health and organ conditions.

Qigong Institute
http://www.qigonginstitute.org/html/about.php
Provides information on Qigong, Energy Medicine, acupuncture, epigenetics psychoneuroimmunology, integrative medicine as well as research and educational materials.