Askbot is a Q&A forum based on my English translation of Chinese CNPROG
You can grab a copy of askbot at Github or PYPI (with easy_install or pip).
In the past I used manage Bio-NMR research facility at the University of California, Irvine and I've founded an online Magnetic Resonance community project:
NMR Wiki and NMR Wiki Q&A forum - all about really strong magnets, radio-frequency pulses and chemistry.