6. Finding help

6.1. The project mailing list

If you encounter a bug with scikit-learn or something that needs clarification in the docstring or the online documentation, please feel free to ask on the Mailing List

6.2. Q&A communities with Machine Learning practictioners

Metaoptimize/QA:  

A forum for Machine Learning, Natural Language Processing and other Data Analytics discussions (similar to what Stackoverflow is for developers): http://metaoptimize.com/qa

A good starting point is the discussion on good freely available textbooks on machine learning

Quora.com:

Quora has a topic for Machine Learning related questions that also features some interesting discussions: http://quora.com/Machine-Learning

Have a look at the best questions section, eg: What are some good resources for learning about machine learning.