Niceboard - Start a job board. Monetize your audience.
Stack Overflow - Community-based Q&A part of the Stack Exchange platform.
JobBoard.io - Powerful software to help you create professional yet elegant Job Boards. Let us worry about the technology, so you can focus on maximum business growth.
The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
Naylor Boxwood - Boxwood provides an e-mentoring system, mobile-optimized job board and career center Facebook application.
Blurtit - Blurtit is a Q&A website. You can ask a question or answer on any question.