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It's 50/50 that I even have my friends email addresses. Facebook messaging covers 99% of the need.

• mmphosis 12y ago
  But, don't you need an email address to sign up to these sites in the first place?
  • frik 12y ago
    Some allow you to register with an SMS token and some with an FB account.
  • Nagyman 12y ago
    Yes, but that doesn't mean one has shared that email address with one's friends or vice versa. People have email addresses to sign up. Once signed up, the social connections are made on the platform.