Questions & Answers (crowd sourced)
What is it?
 Crowd sourced question and answers sites use the opinion of many individuals to highlight popular answers to questions. It is closely linked to Crowd Wisdom Social News sites  and Wikis in the way that knowledge is gathered collectively.
Popular sites
- AllExperts
- WikiAnswers
- Yahoo! Answers
- Mahalo Answers
- Answers.com
- Quora
Find out more
Cost
Most sites are FREE to use.Â
This information is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License