Mailbrew - Automated email digests from Twitter, Reddit, YouTube & more

follow.it - follow.it gets publishers more followers & recurring traffic, and provides a better reading experience for followers

Taco Digest - Customizable personal email newsletter created from your favorite sources.

FeedPress - Custom hostname. You can customize FeedPress to use your own domain name to retain your website's brand. All you need to do to get started is simply register your domain name via your hostname management page.

Blogtrottr - Track RSS feeds and send updates to your email inbox.

Feedio - Feedio helps bloggers manage and grow their email and RSS subscribers.