Check out the Twin Cities Ukulele Orchestra thread authored by Lanark.
Our little orchestra had its first meeting on March 3rd. He posted here and on Craig's List. Lanark also started a website on Nexo. I was only able to attend the first meeting and it was somewhat loose -- it was our first meeting after all. 13 people showed up. It was a lot of fun. After we played our very first song I thought "it really doesn't sound all that bad!" I'm not sure what happened this past Tuesday. Nor do I know if a firm schedule for meetings has been made. I'm pretty sure though that Lanark -- and I agree totally -- would like to be at a minumum every other week. Lot of help I am, huh?
Other ukulele clubs seem quite organized, but I'm guessing they've been at it for a while. Have you seen any Ukulele Orchestra of Great Britain videos? Well, they didn't get to be that way without structure. I think if you are starting out it pays to be a little flexible at first. You need to find out what everyone is looking for in a uke club and I suppose let the majority rule.
I also go to an ukulele club that meets once per month. We meet in a restaurant at a large public park. This is mainly a 3 hour meeting where people brings songs and we sit around playing (strumming mostly) some and yapping some. It's very informal. That also has a Nexo site.
Nexo sites are good for posting up all sorts of things -- calendar, music, forums, uke p*** (Lanark calls it "eye candy"), links -- you name it.
Why not make up some flyers and go to some music shops in your area? Try Craig's list. TCUO got quite a few members from there. You NEVER know who is paying attention or is maybe just starting out.
I'd say go for it. It's really fun. It's kind of lonely playing the ukulele, but a uke club makes you feel part of a fun community -- much like UU :shaka:
I'm sure other UUers will have more help for you.