Here you can find various useful links.

Grin website

https://grin.mw/

Forum

https://forum.grin.mw/

Grin Community Council Github

https://github.com/grincc/

Spending Logs

https://github.com/mimblewimble/grin-pm/blob/master/financials/spending_log.csv

https://github.com/grincc/finance/blob/main/spending_log.csv