Design Stack Overflow

Stack Overflow is one of the largest online communities where developers learn and share knowledge. The site lets users ask and answer questions. Members who take part can vote questions and answers up or down. Users can also edit questions and answers, in the way a wiki works.

Users of Stack Overflow earn reputation points and badges. For example, an "up" vote on an answer earns its author ten reputation points. An "up" vote on a question earns five points. Users also receive badges for valued contributions