If you have Yahoo Mail and supports disposable email creation, much better. You can create a disposable email and use that disposable email to register another account in twitter. You can still receive email through your original email but that another twitter account is associated with the disposable email address inside your original email address.
If you have GMail, you can follow this trick here;
http://creativebits.org/twitter/one_gmail_many_twitter_accounts
If you have Yahoo Mail and supports disposable email creation, much better. You can create a disposable email and use that disposable email to register another account in twitter. You can still receive email through your original email but that another twitter account is associated with the disposable email address inside your original email address.