Building the Send Button

What this post added

Introduced the Send button, a new social plugin that allows users to send links to a subset of friends, differentiating from the Like button's broadcast nature. Implemented a flyout dialog for recipient selection and message composition, featuring a custom typeahead with recipient suggestions, friend/group combinations, and external email support. Extended core Facebook tokenizer and typeahead modules in JavaScript, and developed backend code for recipient suggestions. Leveraged the Messages system for sending to users, groups, and email addresses. Enabled seamless integration with the Like button via an XFBML tag.