Facebook have launched Send Dialog, which takes on the functionality of Send button. It allows user to share link as a private Facebook message, email or Group post. It will help in driving targeted traffic to websites and applications, whose content is private and
cannot be shared to other friends present in the users list. Facebook released it on April 25th and it has been added to over 100,000 sites in the first 30 days of its launch. This indicates the need for the private sharing capabilities.
Facebook says “the Send Dialog is appropriate when a person might otherwise send a personal email” and shouldn’t be used to communicate impersonal content such as of in-game status or to deliver invites. Facebook apps should instead use the Requests channel for that type of content.
Facebook says it will be especially helpful for developers of ecommerce, travel, and event websites and apps where the user may want to only share information with specific people. Now, Facebook developers can start developing Send dialog using the code, which they can find on documentation of Facebook. It also doesn’t require any special permission from the user side. As such, this feature doesn’t work for mobiles currently.