Google Sidewiki provides product tips to online petitions and from expert health advice to programming help. If you haven’t used Sidewiki yet, you can download as part of Google Toolbar for Firefox and Internet Explorer, and Google Chrome, Safari or other browsers without Google Toolbar, simply install Sidewiki bookmarklet. Google now releasing top-requested feature for API that makes it easy to retrieve all Sidewiki entries for an entire domain. With this addition, you can look for new entries created on any page of a website and also subscribe to them via RSS. See Sidewiki API documentation for all of its details. Here’re top 10 great entries of Sidewiki.