Liking and Sharing across the Internet
If you’re a reader of blogs, you may notice that the Share and Like links and icons appear in lots of places and not just in Facebook. For example, at the bottom of blog posts on Jezebel, a Gawker Media blog, a little Like button counts the number of people who have liked any particular post.
You can like posts on any website you’re viewing, and those likes will be recorded on your Facebook Timeline and may appear in your friends’ News Feeds. Through Social Plugins, Facebook allows other website developers to enable certain Facebook features like the Like button on their own websites.
If you’re currently logged in to Facebook, you may start noticing these buttons all over the Internet. This is a really quick way to let your Facebook friends know about the most interesting content you’ve come across online.
Other websites have Share links that generate the same Facebook Share box that you find on Facebook itself. So from an entirely separate website, you can choose to post to a friend’s Timeline, your own Timeline, to a group, or to a message thread.