Hi there, I've got an email list with 250 people who have previously bought SEO services off me. These 250 people alone make up the bulk of my online income. I send 4 emails a month (once a week) and each email blast makes me around $1,000. So I make $4,000 per month from my email list every month just from these 250 people. In fact I only get 4 customers every week paying me $250 each which makes up that $1,000 per week income. Now I'm trying to increase my income. Should I sell affiliate products on the email list in hopes of landing more sales from the 250 people or should I just carry on doing what I'm doing? What can I do to scale this SEO business up?