Nordic.js: A two-day conference all about JS in Stockholm 18-19 September 2014
nordicjs.com
nordicjs.com
I heard that a lot of startups at hanging out at SUP46 (http://sup46.com/) these days. They got some cool startups there right now and seem friendly enough. You can also check out http://swedishstartupspace.com/. They usually cover Stockholm based startups.
I saw some map of Stockholm startups somewhere but cannot for my life remember where. Should be able to Google for it.
Edit: Next STHLM Tech Meetup is on the 17th Feb. There was one earlier this week, which I unfortunately was unable to attend. http://www.meetup.com/STHLM-Tech-Meetup/events/162741412/
Just kidding. The event sound fascinating, and I like the website design; it drew me in and inspired me to give away my email address.
International Large Scale Javascript Conference
February 13-14 2014 , Budapest , Hungary , Europe