Facebook just switched your default e-mail address

Facebook CEO Mark Zuckerberg and company have switched out users' default e-mails with @Facebook.com replacements Whether you've noticed or not, you have a new primary e-mail address listed as your Facebook contact, and most likely it's an address you've never used. The social-networking site has quietly replaced your default e-mail addresses such as Gmail and Yahoo! with your @Facebook.com address, an e-mail service option the company launched a few years ago and synced with Timeline in April. "As we announced back in April, we've been updating addresses on Facebook to make them consistent across our site," a Facebook spokesperson told Mashable. "In addition to everyone receiving an address, we're also rolling out a new setting that gives people the choice to decide which addresses they want to show on their Timelines."