Dozuki - Dozuki is a web-based tool for creating and distributing step-by-step documentation.
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
DocGen - Static website generator
Zoho Desk - Industry's first context-aware Helpdesk Software
openSourceCM - Web-based legal document processing and contract management
Salesforce Service Cloud - Service Cloud integrates customer service with social networks and provides a self-service customer portal and knowledge base system.