List of the open source Q&A implementation or stackoverflow-like website, with “Active” development and promising features and community.

P.S This list is not in any particular order.



2. Shapado


3. Askbot


4. Question2Answer


5. LampCMS

Best Engine ?
Personally, i will go for OSQA, for their huge community in DZone.


  1. MongoDB
  2. MongoMapper
  3. Django Web Framework
  4. GNU GPL license
  5. Stack Overflow clones
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