Facebook announced Monday that it's getting rid of its @facebook.com e-mail service. E-mail service, you say? Yes, the social network actually had a service for e-mail addresses that users could get when they signed up -- not to be confused with Facebook Messages, Chat, or Messenger. Very few people actually used the service, according to the social network, hence, its retirement. A Facebook spokesperson told CNET that the social network has started notifying people who use their @facebook.com e-mail accounts that the 'feature is changing.' /> 'We're making this change because most people haven't been using their Facebook e-mail address, and we can focus on improving our mobile messaging experience for everyone,' the spokesperson told CNET. Facebook just gave its mobile messaging a major boost. Last week it announced it was buying messaging service WhatsApp for $16 billion, plus an additional $3 billion in stock grants. Even with its e-mail service now dead, the WhatsApp deal shows that Facebook is serious about being a powerful contender in the global messaging scene.