interested in a group?

i sent out a blanket email a while back at my company to see if anyone wanted to practice shooting at lunch.
by surprise i got responses (plural!)
so i'm attempting to get a group together.
so far there's about 15 ppl on the distribution list including myself.
i've never participated in an interest group.
i've been listed on the seattle-flickr group since i got here and still haven't made it to a photo stroll.
but i'm trying to get this off the ground.
and it's challenging - mostly because i have no idea what it takes.
i've started a flickr group: step 1 - finding a common site to share info and pictures. 5 other members on there so far.
we've designated two days of the week for activities during lunch.
wednesdays are stroll days.
fridays are inside days. reviewing assignments and such.
tomorrow is the first group "activity" however. the other days were strolls and sit downs but tomorrow - one gal is bringing in her portable studio so we can play around w/lighting and such.
but keeping this altogether - man, talk about a challenge. it's interesting though, i'm trying to keep everyone updated, trying to keep info circulating, events going, ppl engaged - it's hard! "i have no idea what i'm doing!" we're starting a wiki (i didn't even know what the wiki was for and now i'm editing!) and scheduling out assignments and such. it's fun. it's hard. but boy, i'm trying...