Share 'what is an opt-in list and why is it you need one'

Today, I'd like to teach you something about why I think you should start building an opt-in list of your own. Here it is: There are several advantages growing your own opt-in can offer you. First of all, the most obvious benefit is the fact it is so amazingly easy to get started and maintain. Regardless of your Internet experience you can get started right away without having to expend very...