The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
wikiHow - wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual.
Ask Me Help Desk - Ask Me Help Desk is a question-and-answer site.
AllAnswered - Your Team's Collective Brain All-In-One Knowledge Management System Wiki + Q&A + Workflow + AI
WikiSpooks - WikiSpooks is an open licensed, open source, 100% volunteer encyclopedia of deep politics and news.
JustAnswer - JustAnswer is a leading online question-and-answer service that connects users with experts in various fields.