As if Facebook and Twitter and other social media don’t offer enough cyber-information overload, the newest player in the age of social networking is doctor and hospital rating sites. More than 30 such rate-your-doctor Websites exist today, including Healthgrades.com and RateMDs.com, as well as more general consumer guides such as Angielist.com – more known for rating plumbers than clinicians – and Yelp.com.