The Internet is one of the most utilized resources for obtaining information, learning, communication, and as a source of advice. The most sought after advice and information are related with health matters. In the United States, for example, over 16 million people per year visit WebMD (http://my.webmd.com/webmd_today/ home/default), an online portal dedicated to providing health information and services (Sass, 2003). Health information on the Internet has grown exponentially, with up to 88 million adults predicted to access medical information online in 2005 (Ansani et al., 2005). This merging of medical knowledge and information knowledge has given birth to e-health.