There are several websites that give useful information regarding bronchitis. Although it is not easy to specify which website has the best information, it is advisable to go for medical research and information websites such as Centers for Disease and Control Prevention, according to Mayo Clinic.
Centers for Disease and Control Prevention (CDC) is a government website, and information posted on it is factual and reliable. The majority of the other websites use CDC as a point of reference when posting their information. It is therefore wise to counter check that the information obtained from other websites concurs with what is found in the CDC website.