Facebook @Mentions: Five Ways They Could Impact Twitter

Facebook just sent shockwaves through the social web with its announcement that they will be supporting @mentions in status updates . The feature, which Facebook calls tagging, allows you to not only reference friends, but groups, pages, and events. Without any hesitation we will say that this move is a direct attack on its upstart competitor Twitter , whose @mention feature (formerly known as @reply) has been an integral part of the microblogging service.