This list is not exhaustive, and is limited to notable, well-known sites.
The Alexa website rankings are from various time periods.
Most of this online behavior data is public—and can inform your business.The notion of a "perfect ten" came into common usage as a result of this film. In 1990, one of the first computer-based photographic attractiveness rating studies was conducted. 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. In 1992, Perfect 10 magazine and video programming was launched by Xui, the original executive editor of Spin magazine, to feature only women who would rank 10 for attractiveness.Typically, the site gives instant feedback in terms of the item's running score, or the percentage of other users who agree with the assessment.They sometimes offer aggregate statistics or "best" and "worst" lists.Most allow users to submit their own image, sample, or other relevant content for others to rate.