A lot of chess clubs are non-profits although they may not be registered as such.
Chess Charities, Non-Profits, etc.
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Here is worthwhile charity: public chess in New Orleans. http://chesscommunite.weebly.com/donate.html
If you know of a chess-related charity, non-profit or related program or scholarship fund, please post it here. As we go into the last few months of the year, this would be useful information to have.
I'd be particularly interested to know of ones that are tax deductible. The only 501(c) tax-deductible related ones I know o fright now are something of Dan Heisman and a Utah chess scholarship program.