Those emails can come from three different places:

1. Email addresses imported through your Contact Weblet. You can import these automatically from any of your webmail or email programs, or sites such as Plaxo and LinkedIn, then subscribe them to any of your mailing lists.

2. Emails entered on capture pages you have created (you can link to a capture page from your blogⁱ).

3. You can import email addresses directly into the Email Weblet. These addresses can come from almost anywhere, including lists you have purchased.