Google Side Wiki

The Google search engine now includes a new feature, Google Sidewiki. This toolbar that installs on the side of the browser window allows you to leave a comment on a website. The comment is then visible to other users, using Google Sidewiki. Facing the risk of being drowned in the comments, Google has developed an algorithm that will place the most relevant, rather than the most recent. Google Sidewiki is available for Mozilla Firefox and Internet Explorer and should arrive soon for Google Chrome and other browsers.