Pencil Project - Single-user mockup / wireframing / diagramming tool
Facebook for Business - Facebook Business gives the latest news, advertising tips, best practices and case studies to meet the business goals.
Prototyping Tools - Find the Prototyping Tool You Need
Buzzstream - Build Relationships. Build Buzz. Web-based software that helps the world’s best marketers promote their products, services and content.
draw.io - Online diagramming application
Fomo - Fomo turns your site into the online equivalent of a busy store