From Social Patterns
A user who enjoys an application may want to share it with friends, particularly if it is collborative or gamelike in any way.
When hosting or providing a platform for applications, incorporate a sharing flow in order to facilitate organic distribution of popular applications.
Incorporate a Share This widget into the chrome of your application canvas. Enable users to choose recipients from among their contacts.
Notify recipients of the invitation and ask them to install the application. Post vitality updates to announce when a new application is installed.
One of the appeals of social media is the phenomenon of supercharged word-of-mouth growth patterns through easy peer-to-per sharing and distribution of applications.
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