Here are a few sites with a page of links to ukulele clubs and societies. There might a few ukulele clubs listed on those sites that are not here. However, my site seems to include a little (a lot) more information that simply a listing of links.
327 songs listed in PDF format. All songs have ukulele chords and lyrics.
Some music stores might offer a club discount to active members.
The ukulele section right here has a ton of information, links, resources, lessons, TABs and Song Resources.