its a question and answer script written in php. its perfect for search enginge ranking. its not an exact clone but its similar to some websites which are out there

Rated 0.0/5 (0 vote)

Shapado is another Stack Overflow-like app written in Ruby on Rails, mongomapper and mongodb. Using this script you can make a Stack Overflow Clone or a Yahoo Answers Clone

Rated 2.7/5 (3 votes)

OSQA is an Open Source Q&A System written using Django. Users can ask and answer questions, comment and vote for the questions of others and their answers. Both questions and answers can be revised and improved. Questions can be tagged with the...

Rated 1.0/5 (3 votes)

Question2Answer features * Easy styling with CSS themes. * Fast integrated search engine. * Points-based reputation management. * Question tagging (with auto completion). * Simple and secure admin interface. *...

Rated 3.3/5 (3 votes)

jAnswers Factory provides the perfect Question and Answers Solution for the Joomla CMS integrating features from the well know Jahoo Answers system. Users can ask questions, Community provides answers. Once a question placed, this can be extended...

Rated 3.5/5 (2 votes)