Promo Self Serve - Launch a promotion across the internet in 90 Seconds
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates
Best Referral Programs - A curated directory of startup referral programs
Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
NewsWhip - Chrome extension that checks how viral your content is
DuoCircle - DuoCircle provides enterprise spam filtering and email management solutions.