At the bottom of many blog posts (including this one) and website entries you're likely to find a widget that allows sharing to social sites or emailing to a friend. ShareThis competes with other systems like AddThis and SocialTwist to give publishers an easy-to-install sharing method.
The standard ShareThis installation allows for non-developers to customize the widget's tabs (Social Web, Post, Email), the social sites included, and the look of the widget.
- Share something more than just a single web page (e.g. image, video, etc.)
- Change the default object properties
- Share multiple objects on a single web page
For further reference, Marshall Kirkpatrick interviews ShareThis CEO Tim Schigel and discusses how the data layer of the sharing phenomenon will have increasing value, and WebMonkey has a step-by-step tutorial on performing basic and advanced customizing using the API.