Can you add a math related site to the “Trilogy”?
May I suggest adding a math/science sister site to the family. MathOverflow is apparently only for research mathematicians and they do not accept student questions. Also that site is apparently not part of the same family but is hosted by someone else.
The purpose for such a site would be asking questions related to mathematics, physics and other related areas, much in the same fashion that we do here on SO.