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Many web sites allow users to provide feedback on products, services or other users. In addition to verbal reviews, rating facilities are typically present that allow visitors to rate an item from 0 to 5 (often in conjuction with stars), from 0 to 10, or simply by voting + or -, respectively. These visitor ratings are then often used to rank the rated items.

Bayesian Rating - how to implement a weighted rating system - De

http://www.thebroth.com/blog/118/bayesian-rating

Tools and Metrics You Need to Measure and Monitor Social Media S

http://www.jmorganmarketing.com/tools-metrics-measure-monitor-social-media-success/ If you want to be able to track the success of a social media campaign (and for that matter any online marketing campaign) you have to benchmark and measure against something. If you want to start a social media campaign tomorrow then you need to make sure you have the tools and metrics to measure, today.
http://adverlab.blogspot.com/2007/12/dashboard-spy-blog-about-business.html Dashboard Spy: S ubaru advertising effectiveness dashboard

future of advertising and advertising technology: Dashboard Spy:

217 Million People Play Online Games

217 million people worldwide play online games, according to new figures released by comScore . The study took into account all sites that provide online or downloadable games but excluded gambling sites. The 217million users account for 28 percent of all people online. The report appears to count visits to the actual gaming sites as opposed to actual user numbers. http://techcrunch.com/2007/07/10/217-million-people-play-online-games/