MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Crypto Buyer's Guide - Extensive cryptocurrency buying guide
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
Cryptominded - Where you learn more about cryptocurrencies
Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.
CoinList - Build a diverse portfolio of pre-launch token investments