Crowdsourcing
today I come to know about term “Crowdsourcing“… “Crowdsourcing” is a neologism for a business model that depends on work being done outside the traditional company walls: while outsourcing is typically performed by lower paid professionals, crowdsourcing relies on a combination of volunteers and low-paid amateurs who use their spare time to create content, solve problems, or even do corporate R&D.
Two good examples are:
http://www.mturk.com/mturk/welcome
http://chacha.com/ (Search with Guide)

Posted by Hardik