Another of the many benefits of email marketing is that email communication allows you to communicate frequently with your subscribers, making sure that you are on top of their minds. In order to build a sustainable business, you need to influence new conversions while also encouraging repeat business. With email, you can check in with your subscribers periodically to remind them of the value that your business can provide. This is a great way to keep in touch with customers in between purchases while also nurturing relationships with new leads.
Another example is KissMetrics, the advanced analytics platform, who has two tools in a section of their site called /growth-tools/ around (1) calculating statistical significance for AB tests and (2) building URLs with UTM parameters for easy campaign tracking. These are useful to their exact target audience (marketers that run AB tests and other marketing campaigns):
eROI’s monthly newsletter is a stellar example on so many levels. The first few paragraphs includes an entertaining introduction to the topic of the newsletter. Then, they include four “insider tips”, which include “read more” buttons to the blog post on their site. But the best part of this newsletter is the interactive element at the bottom: they used working radio buttons to allow subscribers to vote for next month’s theme! How cool is that?

This is essentially a smaller “digested” version of the newsletter. Depending on what you want your digest to contain, you can automate and schedule them to be sent at regular intervals. A perfect example is collating a list of notifications for every new post you publish that is then sent to your email list once a week. Some blogging platforms will even allow your subscribers to set up their own preferences, so how often they are sent a digest for example.
Based on all the information we have gathered during our in-depth research we assign a magic score to each vendor. This is based on factors that affect any solo ad purchase (for e.g: CPC, Sales, Conversion rate etc). We use our proprietary algorithm to do this. As a rule of thumb, higher the Magic Score, better the solo ad experience is going to be.
Email marketing messages can also help you increase traffic to your website. You can link to relevant website content within your email message or craft a compelling CTA that asks readers to head back to your website to take a specific action. If you really want to make your CTA stand out, you may want to use a colorful button, which makes it easy as possible for readers to take notice of your CTA and make their way back to your website. 
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