Make a List !

Before trying to buy spam CD's with thousands of email addresses, try using your own data, which is a more direct source of information for your business. If you don't ask for email addresses of your contacts, begin asking now.

Does your site work for you ? Your visitors are probably the best source you can ever imagine. Ask for their contact information and provide them something useful. Start a relationship !

PS : Those CD's with email addresses are considered illegal in many countries. They might get you into real trouble, so avoid them.