Research library as per GZ forum. Topic of the Month. A topic is selected and is a focal point of discussion for the month. That topic could be a published paper, point of general interest regarding astronomy or astrophysics, what have you.
I like both these ideas! How about, "Python, tips, traps, 'how to ...?', etc"? Or just coding in general, for astronomy/astophysics (of the extra-galactic kind).
A Wikipedia-related discussion to help with editing articles of interest?