Hi @MIKEtourismZA. Welcome to Constant Contact and thanks for bringing your question into the Community! You are certainly taking the right steps in wanting to have your contacts sign up to receive information from you. Constant Contact provides our customers with list growing tools, including a web sign up form. You can send out a link to this form to your existing clients and they can then sign themselves up for your contact list. Here is more information about using our web sign up forms. Please let us know if you have any more questions!