Rating sites usually provide some features of social network services and online communities such as discussion forums messaging, and private messaging. Some function as a form of dating service, in that for a fee they allow users to contact other users. Many social networks and other sites include rating features. For example, MySpace and TradePics have optional "rank" features for users to be rated by other users.
When rating sites are dedicated to rating products, services, or businesses rather than to rating people, and are used for more serious or well thought-out ratings, they tend to be called review sites, although the distinction is not exact.
In 1990, one of the first computer-based photographic attractiveness rating studies was conducted. During this year psychologists Langlois and Roggman examined whether facial attractiveness was linked to geometric averageness. To test their hypothesis, they selected photographs of 192 male and female Caucasian faces; each of which was computer scanned and digitized. They then made computer-processed composites of each image, as 2-, 4-, 8-, 16-, and 32-face composites. The individual and composite faces were then rated for attractiveness by 300 judges on a 5-point Likert scale (1 = very unattractive, 5 = very attractive). The 32-composite face was the most visually attractive of all the faces. Subsequent studies were done on a 10-point scale. In 1992, Perfect 10 magazine and video programming was launched by Edward Rasen, the original executive editor of SPIN magazine, to feature only women who would rank 10 for attractiveness. Julie Kruis, a swimsuit model, was the original spokesmodel. In 1996, Rasen created the first “Perfect 10 Model Search” at the Pure Platinum club near Fort Lauderdale, Florida. His contests were broadcast on Network 1, a domestic C-band satellite channel. Other unrelated "Perfect 10" contests became popular throughout the 1990s.
The first ratings sites started in 1999, with RateMyFace.com and RateMyProfessors. The most popular of all time, Hot or Not, was launched in 2000. Hot or Not generated many spin-offs and imitators. There are now hundreds of such sites, and even meta-sites that categorize them all.
In the fall of 2007, HotFlation.com , a photo rating and sharing site that extended the Hot or Not concept by taking user location into account in determining where users were considered 'hot,' was launched by two LA-based entrepreneurs. The site combined the photo rating essentials of Hot or Not and its ilk with enhanced features and 'Web 2.0' interactivity (tags, comments, widgets, etc.).
Rating sites have a social feedback effect; many high school principals and administrators, for example, have begun to regularly monitor the status of their teaching staff via student controlled "rating sites". Some looks-based sites have come under criticism for promoting vanity and self-consciousness. Some claim they potentially expose users to sexual predators. Most rating sites suffer from similar selection bias since the only highly motivated individuals devote their time to completing these rankings, and not a fair sampling of the population. Additionally, vengeful individuals can post multiple comments, thereby skewing the ranking.
Below is a sampling of rating sites that have achieved some recognition and coverage.
Social media meets health care ; G FORCE | Dr. Tara Lagu; Medical researcher finds consumer rating sites, used correctly, can be beneficial to patients
Aug 09, 2010; Dr. Tara Lagu is a health care researcher at Baystate Medical Center in Springfield who studies social networking as a tool in...