Documize - Enterprise-grade wiki and knowledge management platform

Facebook for Business - Facebook Business gives the latest news, advertising tips, best practices and case studies to meet the business goals.

HackMD - Fast and flexible, real-time collaborative markdown, inspired by Hackpad.

SocialPilot - SocialPilot is an app designed to help businesses and professionals with social media marketing.

ReadTheDocs - Spend your time on writing high quality documentation, not on the tools to make your documentation work.

Buzzstream - Build Relationships. Build Buzz. Web-based software that helps the world’s best marketers promote their products, services and content.