Yes, I think it is a prerequisite in every sign ups in whatever social media sites you wanted to create an account. It is where twitter will send you the confirmation/verification code or link for your account to be verified. Meanwhile, it is optional to receive updates from twitter to your email.
You can change your email address in your settings.
Barry Hankerson does have his email address listed online. He is a record producer and also a manager. He does have a Twitter account that you can follow and ask him questions.
twitter@posterous.com is the email address to notify twitter.com
Since you can't search for people on Twitter through their email address, you can't.
You can't use the same email address again.
Email addresses are private. Her Twitter account is @yelyahwilliams
I don't know their email address but you can follow them on twitter =)
No your email address will never be given out.
To get more than one twitter attached to the same email address, you must deactivate one email and make another. Only one twitter can be made per email. To get more than one twitter without deactivating, you must connect other twitter accounts to a different email address.
@Princeton143 twitter
You need an email address.
A user's email address isn't supplied.