Today, Abby Glassenberg posted a great article with five tips to build your email list. Go check it out! The list is targeted at craft bloggers/creative business owners, but most of it is applicable no matter what your blog is about.
I use MailChimp for my email newsletter and I love it. There is a slight learning curve, but once you figure things out, it's easy to put your list together and send out the messages. (BTW, this means that if you ever need help with MailChimp, shoot me an email and maybe I can help you out). Abby also mentions a service called TinyLetter that is like a scaled down version of MailChimp. It could be worth checking out if you are a little technophobic.
Finally, do you want to sign up for my newletter? If so, you can do it right here!!