As long as your group will meet the Terms of Service,
/static/tos, especially the "Conditions of Use" section, there should be no problem having it here.? You can compare available features at
/static/pricing.? If you're not sure, you can start with a Basic (free) group and upgrade later if needed.? You can also upgrade and downgrade as needed if you use the monthly plan.
Duane
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Help:
/static/helpGMF's Wiki:
/g/GroupManagersForum/wikiSearch button at the top of Messages list
A few site FAQs:
/static/pricing#frequently-asked-questions