Onionshare - OnionShare lets you securely and anonymously share a file of any size with someone.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
ShareDrop - HTML5 clone of Apple's AirDrop - easy P2P file transfer powered by WebRTC
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
Send Anywhere - Send whatever you want, wherever you want
Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.