This email introduces themselves, explaining to them what they just did (subscribing to your email newsletter), and also where to get mailing list the report you promised them. If you have your squeeze page and autoresponder ready, the next step is about getting traffic. Sometimes it is wise to test and see if your website is really making you money.
So you could consider running an advertising campaign on AdWords or any other pay-per-click advertising network to test that. If you mailing list could afford it, it doesn't matter if you lose money at this point because the goal is to see if the website converts. If it does, then you can start doing free traffic methods like writing articles and distributing it to article directories.
You can also do other SEO things like getting more backlinks, building a Squidoo page, a HubPage, a Blogger site and others. I guess that wraps this up then. I just want to stress out at that the important thing in this method is your mailing list squeeze page and your autoresponder emails sequence. The squeeze page puts people into your marketing funnel. The autoresponder emails makes you your affiliate sale.