Scale Model - Connect with more of the people who really matter
Zoho Campaigns - Smart email marketing software that helps you reach your target audiences, engage in a personalized way, and grow your brand presence.
Owlead - Grow your Twitter with valuable followers, effortless
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Twitter Audience Insights - Loads of info about your followers, their interests, & more
Mailjet - All-in-one email service provider that provides maximum insight and deliverability results for both marketing and transactional emails.