The main documentation website for NumPy and SciPy is at http://docs.scipy.org/doc/. Through this web page, we can browse the NumPy reference guide at http://docs.scipy.org/doc/numpy/reference/ and the user guide as well as several tutorials.
The popular Stack Overflow software development forum has hundreds of questions tagged
numpy. To view them, go to http://stackoverflow.com/questions/tagged/numpy.
This might be stating the obvious, but
numpy can also be substituted with
ipython, or almost anything of interest. If you are really stuck with a problem or you want to be kept informed of NumPy development, you can subscribe to the NumPy discussion mailing list. The e-mail address is