I will be graduating with a Masters degree soon in mathematics. For various reasons I have decided not to pursue a career in academia for now and will instead be working a job in industry that will not require much advanced mathematics on a day to day basis.

Besides MathOverflow, StackExchange, and other online venues, how may one stay engaged with the mathematical community from outside academia? I plan to keep in touch with faculty from my institute, but I would like also to engage with the wider mathematical community.

My goals include having others to collaborate with, and to discuss mathematics in general.

Edit: Thank you all for the wonderful and helpful answers! Seems like there are many ways I didn’t think about.

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