Without a doubt, one of Twitter’s most defining features is the @Reply, which allows you to in a sense “notify” another user within a tweet for the purpose of sharing information or just communicating a message. Just this past week, Facebook introduced a copycat feature by allowing you to “tag” other users in wall posts, links, statuses and even private messages. At first glance, one might say what is the use of this feature; I can already post directly on peoples walls. The biggest advantage of Facebook’s new @reply feature is the ability to share information more efficiently. You can in a sense now do mass wall posts in one status update by tagging multiple people and the recipients will all receive notification updates. The heart of social networking is the ability to establish networks and share information and Facebook really hit the mark with this latest update. Already in the week that this feature has been available, my friends and I have jumped on it. Not only is it a great way to share media with a multitude of people, its a fun way to to interact with people on wall posts and status updates. The only real difference between the reply feature in Facebook and Twitter is that Facebook actually posts the reply the tagged person’s wall, whereas Twitter merely notifies the user that they were mentioned in a tweet. Facebook has really stepped its game up in the past 6 months, shifting from being a site focused on finding people, events, and pictures to a real time source of relevant media and information.