yep meetups, start as a gathering of a dozen
seminars are for groups of dozen-100
conferences are for 100-more
this is the way to get the word out locally. by discussing it in your area and learning and starting projects locally.
these things dont need large funds upfront. they can be self funded.
EG price of a coffee, then as things get professional, price of a entry fee to cover the location hire for the day/weekend.
where the ticket sale or coffee sale covers the costs.
it also does more than just a pamphlet. it inspires idea's gets people forming projects, businesses, plans.
start small and free. as a meetup, once a week/month what ever you choose, advertise it for free meetup.com and local sections of forums you think are best suited.
use a free location like a cafe/bar for a small group..
then as things expand then self fund via the group you have