Facebook Like Button
Like Button is used to enable users of website to share interesting content with their friends. When user clicks on like button inside you page,
a story will appear in the user's friends' News Feed, with link back to your site. This increases number of visitors to your site.
Following example shows 3 types of layout of like button: 'standard', 'button_count' and 'box_count'. Last button is standard
type with 'send' option enabled.
For all details about the control, with descriptions of all optional properties, please visit:
Facebook Like Button Tutorial.