Lever is the company behind the Derby JavaScript MVC Framework. Learn more at http://derbyjs.com/

Opa is the ultimate framework for JavaScript. We've decided to create this group to help people to discover and try Opa. We'll regularly organize events and hackathons. The goal is to give you the opportunity to work on a regular basis with Opa and with other people, to ask all the questions you have and to listen to all our advice. Our partner, DotCloud, will provide you lunch and drinks as well as some prizes for the best apps! Anyone with basic skills in web development is very welcome. We'll …

A group to explore all things Montage: The HTML5 framework as well as the tools to support it.

A place to learn and discuss new developments in web technologies. We are not focused exclusively on any one language or framework. Instead, this group is to help developers explore the rapidly changing world of web development and understand new technologies and techniques that might fit their needs. We'll try to have a diverse set of events from speakers, to tutorials, to hack nights.

This meetup about developing rich front end web applications with the Backbone.js javascript library. Pair programming, Show and Tell, philosophizing about the "Backbone Way" are prime candidates for how we might spend our time together.

TinyMCE is one of the most popular open source JavaScript online text editors. It is used by Wordpress, Facebook, Jive Software and many others. In fact, even Meetup.com uses it :) We are organizing a TinyMCE developer meetup in downtown Palo Alto to discuss integration tips, prioritize bug fixes and gather ideas for the future roadmap.

Are you annoyed that you have to separate the people that "know jQuery" from the people that actually know JavaScript? Know which direction the browser reads CSS and why that matters for performance? Know how opacity alters compositing in the GPU? Have SpeedTracer, DynaTrace, and others installed on your machine? This group is for you. Moderated by a past core developer of Firebug.

A hacker space for JavaScript enthusiasts, coding educators and students, and those who want to make the web a cool and beautiful place. http://hackreactor.com Twitter: @HackReactor

With the launch of Windows 8 Development Preview at the BUILD conference in Anneheim, Microsoft has unleashed the next generation programming environment. How different is it from the previous generation? Very different AND very much teh same. Our Meetup Goal is to help developers usher in that new generation. We will have presentations by industry leaders talking about the best way to develop these new forwarding thinking, touch enabled windows 8 native applications that run on both inexpensive …

We'll talk all things jQuery, JavaScript, HTML5, CSS3 and all things relating to front end development. Welcome beginners and experts alike!

Hang out and discuss JavaScript tips, tricks, hacks, and frameworks with some of the best scripters around. Show off cool stuff you've done and learn about what else is going on in the JS community. No pressure, no mandatory presentations. Come, hang out, and hear great people talk about cutting edge scripting.

You learned to hack in JavaScript almost by accident, and now it's a serious language with an amazing diversity of applications. This group welcomes all to learn about the reach of JavaScript weather it be client or server side web development, the best testing frameworks, how to run node on a raspberry pie, how 'let' changes what you can do, what W3C specifications might be right for the server side, how to correctly implement polyfills, or a myriad of other topics all around JavaScript.

Free Angular.JS workshop, open bar, door prizes w/ @Domo engineers David Geddes and Aaron Frost! Clift Hotel, SF, May 30 5:30pm Register here: http://bit.ly/11HZStn

Calling all developers, designers and thinkers! Come together to build open source tools and communities to enable the annotation of the world's knowledge.

The Ember.js San Francisco Meetup is the first Ember.js meetup group, in the birthplace of Ember (we think). Let's get together periodically to talk about code, eat, drink, and generally geek out. See you there!

AngularJS meetup group in San Francisco, CA.

Australian-founded in 2005, we're headquartered in downtown San Francisco and we build easy-to-use products that help people work smarter with digital documents. We've hired a great team of engineers here in San Francisco in the last few months to not only bolster our desktop products but to also engineer a beta cloud platform to ease the collaborating, signing, and sending process. www.nitropdf.com www.nitropdf.com/jobs www.nitropdf.com/about www.nitropdf.com/nobullshit

AngularJS meetup group in Mountain View, CA.

This group is designed for developers looking to discover APIs and services that can help speed up and modularize their development and so time is not wasted re-inventing wheels. We will meet and learn the ins and outs of a new API every week, and why that API is relevant to development. Every API demo will be fun and engaging, and the goal of this meetup is not only to learn, but to also have a great time and make friends!

Meet ups organized to talk about Node.js and related technologies, learn about new projects using Node.js and connect with cutting edge geeks.

This group is all about backbone.js and coffee script.(http://documentcloud.github.com/backbone/)

This meetup is for anyone interested in modern development on the web. Group will host talks and workshops focused on both front end and back end development on the web. Anyone with a passion for the web is welcome!

Capital Engineering is a group about how we can use technology to bring order to the chaos of finance. It's a group for mobile, web and back-end developers and designers to learn and share their knowledge of building large, multi-client cloud-based systems. Things like architecting single page apps, advanced charting for mobile and Amazon's simple notification service are par for the course, which will typically be a two part talk complemented by food and drink. At Personal Capital we have devel …

This is a group where users and fans of Firebase get together. Come brainstorm ideas, share insights, exchange feedback on your apps, and create meetups in your region!

Meet other developers using Meteor.  Share your knowledge, apps, and get feedback from others. Meteor is an open-source platform for building top-quality web apps in a fraction of the time, whether you're an expert developer or just getting started.

This is a meetup for people interested in Haskell who get together at Hacker Dojo in Mountain View to code and discuss Haskell, and related topics. Our goal is to help Haskell Hackers of all levels find people who can help them improve their Haskell knowledge.

These are not your typical software engineering events.  BASE is focused on emerging technologies and creating events around topics that have never been attempted.  Events may be around such topics as Big Data, Machine Learning, Robotics, Nanotechnology, 3D Printing, Synthetic Biology, Artificial Intelligence, Computer History, Computer Vision, Augmented Reality (AR), and using software to create art. BASE creates events only possible in San Francisco and the Bay area with experts from all walks …