follow.it - follow.it gets publishers more followers & recurring traffic, and provides a better reading experience for followers
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Feedly - The content you need to accelerate your research, marketing, and sales.
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Feedio - Feedio helps bloggers manage and grow their email and RSS subscribers.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.