Documize - Enterprise-grade wiki and knowledge management platform
The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
Boardist - Personal workspace for all the data
wikiHow - wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual.
ReadTheDocs - Spend your time on writing high quality documentation, not on the tools to make your documentation work.
Ask Me Help Desk - Ask Me Help Desk is a question-and-answer site.