Active maths forums

hey y'all i need to join an active maths forum any recommendations?
and a science one too.

Aceix.
reddit.com/r/learnmath
The Student Room. http://www.thestudentroom.co.uk/forumdisplay.php?f=51

Or stackexchange for more advanced things http://math.stackexchange.com/
Thanks.

Aceix.
...and a different stackexchange for even more advanced things: http://mathoverflow.com
you know, just one i think i know all of the stack exchanges, 3 more pop up
physicsforum.com has an unbelievable math section.
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