Litmus

Canva

canva.com

Canva is super easy to use, and can help you make great looking marketing materials if you don't have time or money to hire a graphic designer.

Wistia

wistia.com

Wistia provides video-hosting services for businesses, including adding videos to the web, tracking performance and building audiences.

HubSpot

hubspot.com

The HubSpot free CRM is free and intuitive. They offer a startup program for discounted rates, if your needs marketing needs exceed their free tier.

Wordpress

wordpress.com

Create a free website or build a blog with ease on WordPress.com. Wordpress offers dozens of free, customizable, mobile-ready designs and themes. They offer free hosting and support.