Btw, by plugging into meetups first, I found a super receptive audience. After a decade+ of planning UGs, I knew the most important but easily forgotten step is promoting the group.

The Tech Events Network tweets most groups either the morning of or night before and five days in advance, so you have a couple chances to notice. Further, occasionally it mentions the meetup group's twitter handle so easy RTing.

(All automated and sometimes I'm surprised about what it's found.)