GitHub Polls - Polls for GitHub issues and readme
HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
Polls for WhatsApp - Create & share quick polls in your WhatsApp groups
Email Marketing: A Beginner's Guide - Master email marketing with these 3 short ebooks from Drip.
Twitter Polls - Polls embedded in tweets
Elevatr Email Marketing Automation - Fast and easy email marketing software