Taking a break from writing tips to give you a publishing tip. One of the best things you can do to grow your indie-book business is to build your email list. There are different ways to go about doing this, but the best way is to offer an incentive. Give the subscriber something of value in exchange for their email, and for the indie-author that's usually a free book.
Though I'd heard about Instafreebie before, I hadn't known about the email opt-in option they offered until recently. When I heard about the kind of success other authors were having, I decided to give them a try. I put up the first books in my series and a couple foreign language ones and was pleasantly surprised at how quickly I'd acquired email address, over 300 in one week. Then Instafreebie offered to feature Gingerbread Man. This was the only first-in-series book that wasn't free elsewhere, so maybe that's why they chose it. For the day it was featured I got over 1000 emails with plenty more in the following days. I've been funneling these addresses into my email automation sequence and have been averaging 50% open rate, which is pretty good.
They offer a 30 day free trial and then it's $20/month, which I consider a bargain.
If you'd like to give Instafreebie a try, tell them I sent you by clicking HERE: I'll get a little referral bonus.