You might be wondering what has that to do with exploding your list building. Well, it is simple really; it only takes a small spark to explode your list, into a huge list. Your downline builder is your flammable material; you will use this to build your list in such mailing list a fast time, that you won't believe the results. As you start your list building, you will be suddenly seeing results you could have only dreamt about before.
You will find your site will go viral as people start telling their friends and family about your newsletter. They will be passing around, and encouraging others to sign up for your double-opt-in list. The more people who sign up, the more they will encourage mailing list others to sign up, and before you know what is happening you'll have a viral explosion. When you light that spark, you will find everything about your mailing list becomes viral. You can't imagine how easily it is for you to have a double-opt-in viral list.
Yes, your list will all be double-opt-in, and they will be viral as you sell them products, they won't be able to resist showing them off to their mailing list friends and family, who will also see the financial benefits, and sign up themselves. It is a never ending circle. You will see that as you are using viral marketing tactics; your list is becoming a viral network.