A question and answer site allows people to post questions and receive answers back from anyone willing and knowledgeable enough to reply. Most Q&A sites allow you to look up questions that have been previously answered.
Q&A sites are not appropriate places to promote products, however sharing information and answering questions can help to build an expert reputation throughout the industry. Companies can also link their website or blog to a question if it provides an appropriate answer. Q&A sites allow brands and companies to engage with consumers that have questions, thus creating relationships and trust with consumers.
Yahoo Answers was launched in June 2005. It is is a community-driven question and answer site that allows users to both submit questions to be answered and answer questions asked by other users. You can check it out at : https://ca.answers.yahoo.com/Quora was founded in June 2009.
Quora is a Q&A site where users can collaborate by editing questions and suggesting edits to other users’ answers. You need to create an account to view questions and answers, if your willing you can do so here: https://www.quora.com/