Social scrapbooking Web site Pinterest has added a new "Send" feature to its service. The site's new "Send" button now allows users to forward and share pins with Pinterest and Facebook friends as well as email contacts. When a user sends a pin, his or her friend will receive a notification in their email. If the friend then repins, likes or comments on the pin, the original user will be notified as well. Following in the steps of Twitter, Facebook ( FB), LinkedIn ( LNKD) and Google ( GOOG)+, Pinterest now allows users to mention a friend within a pin as well, by using the @ symbol followed by his or her user name. The features are the latest in Pinterest's growing list of new additions. Recently, it added a feature that will alert users if they're about to create a duplicate pin. The site also revamped its mobile applications, adding popular features from its Web platform. The chatter on Main Street (a.k.a. Google, Yahoo! and other search sites) is always of interest to investors on Wall Street. Thus, each day, TheStreet compiles the stories that are trending on the Web, and highlights the news that could make stocks move.-- Written by Brittany Umar.