Local user groups

• Asia
• Africa
  • South Africa
    • Cape Town http://www.meetup.com/Cape-Town-Javascript/
• North America
  • Canada
    • Toronto http://www.meetup.com/torontojs/
    • Montreal http://twitter.com/jsmontreal
    • Vancouver http://www.meetup.com/vancouver-javascript-developers/
  • USA
    • Arizona
      • Phoenix http://twitter.com/JavaScriptAZ
    • California
      • Los Angeles http://socaljs.com/
      • MountainView http://www.meetup.com/javascript-9/
      • Bay Area http://www.meetup.com/BayJax/
      • San Francicso http://www.meetup.com/jsmeetup/
    • Colorado
      • Boulder http://www.meetup.com/Boulder-JS/
    • Georgia
      • Atlanta http://www.meetup.com/AtlantaJavaScript/
    • Illinois
      • Chicago http://javascriptchicago.com/
    • Iowa
      • Iowa City http://iowajs.org/
    • Maryland
      • Baltimore/DC http://www.bmorejs.info/
    • Massachusetts
      • Boston http://www.meetup.com/javascript-2/
    • Nebraska
      • Omaha http://www.omahajs.org/
    • Nevada
      • Las Vegas http://www.vegasjs.net/
    • New York
      • Brooklyn http://www.meetup.com/brooklyn-javascript
      • NYC http://twitter.com/nycjs
    • North Carolina
      • Charlotte http://www.charlottejs.org/
      • Raleigh-Durham http://www.trianglejavascript.org/
    • Ohio
      • Cincinnati http://cincijs.com/
    • Oregon
      • Portland http://pdxjs.com/
    • Pennsylvania
      • Philadelphia http://phillyjs.com/
    • Texsas
      • Austin http://austinjavascript.com/
      • Dallas http://twitter.com/DallasNode
      • Dallas http://twitter.com/DallasJS
    • Utah
      • Lindon http://utahjs.com/
• South America
• Europe
  • Austria
    • Vieanna http://www.meetup.com/viennajs/
  • France
    • Paris http://parisjs.org/
  • Germany
    • Cologne http://colognejs.de/
    • Berlin http://twitter.com/berlinjs
    • Frankfurt http://twitter.com/jsugfra
    • Hamburg http://www.meetup.com/hamburg-js/
    • Munich http://munichjs.org/
  • Hungary
    • Budapest http://www.meetup.com/budapest-js/
  • Netherlands
    • Amsterdam http://twitter.com/amsterdamjs
  • Sweden
    • Gothenburg http://twitter.com/got_js
  • Swiss
    • Zurich http://techup.ch/tag/JSZurich
  • UK
    • Brighton http://asyncjs.com/
    • Leeds http://leedsjs.org/
    • London http://www.meetup.com/londonajax/
• Oceania
  • Australia
    • Brisbane http://brisjs.com/
    • Sydney http://sydjs.com/

Also check http://javascript.meetup.com/