New Send Button on Facebook Plugin

Like buttons has been so popular for almost a year now. This has enable the web to be more interesting, more relevant and more social. By hitting this simple button, your friends on Facebook can see what you liked. This has also provided numerous websites to increase their visitors and provided a new metric.
Just yesterday, a new feature has been added by Facebook on its variety of social plug-ins.  They call it the Send Button. While Like button allows user to share things to all of their friends, Send Button allows user to share things to certain people.

Send Button can be used to privately send a link as a message to a friend or a group. This is very practical and convenient if you really want to get the attention of a certain person. As this will be more visible on the inbox rather on the news feed. Moreover, this plug in lets user drive more traffic by sending link and short messages to friends and Group without having to fill-up annoying forms. With the help of its auto-suggesting feature (native to Facebook) to get the friends list, the effort is less.

To add this feature to your existing Like buttons you include send="true", as shown bellow(a snippet from Facebook Developers' Blog post):

<div id="fb-root"></div><script src="http://connect.facebook.net/en_US/all.js#xfbml=1"></script><fb:like href="example.com" show_faces="true" width="450" send="true"></fb:like>

You can also put Send button alone, using the code below:

<div id="fb-root"></div><script src="http://connect.facebook.net/en_US/all.js#xfbml=1"></script><fb:send href="example.com"></fb:send>

Over a couple of days, Facebook will be providing real-time metrics with regards to this new feature on the Insight Dashboard. This will include impressions, messages and referral click to your site. Facebook is hoping that this new feature will be a success like the Like Button.