I highly recommend MailerLite. I’ve used Aweber in the past, and have worked with MailChimp for a client, but like MailerLite the best. It has all the features of the big boys (ie: ConvertKit) but is much less expensive. In fact, it’s free for up to 1,000 subscribers! You can have multiple webforms with different freebies attached, and it even creates landing pages for you. Great tool!
The original version of this book was one of the first investments I made in my blog. Updated in 2017, Lena’s traffic generating secrets are awesome! I’m excited to go through the revamped version and start implementing these strategies!