The Center for Reiki Research seeks to validate and foster the acceptance of Reiki biofield therapy as an integrative healthcare practice. CRR fulfills this mission by conducting, reviewing, archiving, and promoting scientific research on the effects/mechanisms of action of Reiki. 

Reiki has been used as an alternative Cancer treatment that greatly compliments a lot of therapies done today. So much so that many hospitals across the United States are starting to offer Reiki sessions and train their nurses in the practice. Here is an article that talks 

A large collection of articles concerning the practice, history, and ethics of Reiki. Look here for a Reiki practitioner’s thoughts and reflections.

The Wikipedia overview of Chakras, including their historical significance, their place in several religions and traditions, and descriptions of the major seven.

A really great article and video from TED Talks about how the we have the capabilities of healing ourselves with positive thoughts and energies. 

From an article by U.S. News & World Report - What is Reiki?

"It's not meditation, massage, or prayer. But practitioners and clients say Reiki heals in ways that are hard to explain."

Effect of Reiki Therapy on Pain and Anxiety in Adults: An In-Depth Literature Review of Randomized Trials with Effect Size Calculations - 2014

A brief overview of reputable scientific studies on Reiki and the positive presence of Reiki programs in some of the country’s leading hospitals.

In this experiment, Dr. Masaru Emoto took water samples after exposing them to both positive and negative intentions to see how the molecules would react. Positive exposure created water crystals that were perfectly symmetrical and beautiful. Whereas negative exposure made them look decrepit.

An introduction to the spiritual implications of the seven major Chakras, with emphasis on the aspects of mind, body, and spirit that each influence. 

The official website for The International Center for Reiki Training, including links to internal and external articles, resources for Reiki practitioners, and both a free online newsletter and a subscription magazine.

Research on Reiki for oncology patients has received increased interest lately and the topic has been on researchers’ minds for at least the past 25 years. There have been an increasing number of studies published in recent years.

A study done by Beverly Rubik in 2004 attempting to measure the human biofield before and after Qigong was used. Reiki has it's roots in Qigong and has almost identical theories on how we apply Qi or Ki (universal energy in Chinese and in Japanese) to our bodies for healing. So, this study brings to light what Reiki can do for us as well.

A large collection of personal testimonials in addition to both scientific and non-scientific articles regarding the practice and effects of Reiki.

A quick guide to the role of Chakras in Reiki healing with a link to a reference chart.

One of the best collections of scientific studies showing the miracles of spontaneous remissions in illnesses due to positive emotions and energies.