CEO Mark Zuckerberg declares that e-mail is past its prime in the age of texts and instant messages.
The popular social network unveiled its plans in San Francisco on Monday.
Blogs had been buzzing with speculation, a big one being that Facebook will announce an e-mail service, its answer to Google Inc.'s Gmail.
But Facebook says e-mail will be just one component of its plans. Zuckerberg says the company doesn't believe e-mail is going to be a modern messaging system.
The announcement comes a day before Zuckerberg speaks at the Web 2.0 Summit in San Francisco.