CPLUG (Central PA Linux Users Group) is a group for people interested in learning about Linux and open source technologies. Users of all skill levels and backgrounds are welcome. CPLUG has members who are hobbyists and professionals. We discuss open source software, computers, networking, security, and a number of other topics — and how they relate to Linux. CPLUG has a regularly scheduled meeting with presentations held on the second Tuesday of each month. Check out the website for details: htt …

The Philadelphia WordPress Meetup Group is a group of WordPress enthusiasts in and around the Philadelphia area. We love working with WordPress in a variety of different ways. Join us and learn about WordPress and all it has to offer! Meet other local users of WordPress, the Internet's most popular blogging platform and fastest growing content management system. Gather and discuss the best ways to work WordPress, develop and design themes and plugins, tips and tricks for WordPress, and more.  T …

Code for Philly—a Code for America Brigade—would like to invite you to come join us.  We are PHL-based developers, designers, catalogers, organizers, and other citizens working to build a better Philadelphia by applying web technology to government and communities.  We meet weekly, usually Tuesday evenings, and work on a variety of projects building PHL 2.0.  You can join an existing project, create a new one, or bring in something you're already working on and get CfP to help out.  We welcome a …

This meetup group is dedicated to organizing Washington DC -based events for the Alfresco Open Source Enterprise Content Management System (http://www.alfresco.com). Users of Alfresco Open Source Enterprise Content Management to exchange information, code, use cases, case studies, demos, ideas and friends. Leverage the transparency (of code and conduct) and community of Open Source.  The group welcomes technical and non-technical users with the goal of creating a network of people who can be a …

The Philly Open Developer and Design group is open to everyone interested in Software and Web Development. If you ever have, or have been interested in designing or developing your own website, desktop software, mobile application, or any other computer related tool, join us twice at the Philly Open meet-ups. These meetups will consist of presentations from local designers and developers, and they will share their expertise on different skills. If you are looking for fun projects to get involved …

JBoss is much more than an Application server.  With industry-leading frameworks such as Seam, Infinispan, and Hibernate, JBoss is raising the bar for enterprise Java. Our membership is comprised of industry practitioners, open source evangelists, and Java craftsmen.  Each month, we meet to highlight some key JBoss technologies. We are also active supporters of the DC area Technology User Groups community and coordinate regularly with them to hold joint meetings and share our insights and exper …

Creating a portlet.  Allowing your site to be found in search hits.  Optimizing your Lucene search queries.  Managing your web content.  The opportunities and challenges of implementing an open source portal server in the federal government and commercial spaces. Covering Liferay and its related technologies (Lucene, jBPM, JackRabbit, SOLR, Alfresco, REST, Velocity).

This is the group of Apache Accumulo users and developers local to DC / VA / MD. Apache Accumulo is a scalable, open source BigTable implementation written in Java with cell-level security and server-side processing. Join us!

An OpenStack DC Group for the Washington, DC metro area. Technologists, entrepreneurs, investors, government, or corporate employees are encouraged to join in this exciting and very promising world of open source cloud computing called OpenStack (http://openstack.org/).  Let's OpenStack & learn together.  We will be known as the OpenStackers. Are you interested in deploying a Private, Community, Public and/or a Hybrid cloud in the Washington, DC metro area or do you just want to learn or teach? …

This group is a place for developers to learn more about the non-relational, open source, document-oriented database MongoDB. We started this group to grow a more robust community of MongoDB Developers in Philadelphia and provide a place to share knowledge and experience on working with the database in different languages, frameworks and applications. So if you are facing challenges with MySQL or Postgres or Oracle and want to explore a more flexible, scalable alternative, please join us at one …

Xykon hosts hands-on workshops and get-togethers looking at Drupal, CiviCRM, and other open source applications. We want you to join us for some of them or give us your opinion on how these meetups can improve.

DC Perl Mongers meets monthly to celebrate and share Perl and related (generally open-source) technologies and cultures. Perl is a programming language which excels at text manipulation, and is additionally used for all sorts of software development. Also check out our website/wiki - http://dc.pm.org/ We primarily communicate via our mailing list. To subscribe, send an email to majordomo@lists.pm.org with "subscribe dc" in the body of the message (no subject necessary). You may then send mail to …

A group, lead by the team at IKANOW, devoted to the use and development of open source, big data, agile intelligence solutions, for the DC/Metro area. Join our group if interested in solving real business problems utilizing open source, big data solutions.

"Open source" is not just about making software. It's about how we engage with each other, how we innovate and what problems we ultimately solve. This NOAA user group is dedicated to promoting knowledge and sharing experiences about geospatial free and open source software,  and all that follows.

This group is a place for anyone to learn more about the non-relational, open source, document-oriented database MongoDB. We started this group to grow a more robust community of MongoDB Developers in the South Jersey area and provide a place to share knowledge and experience on working with the database in different languages, frameworks and applications. So if you are facing challenges with MySQL or Postgres or Oracle and want to explore a more flexible, scalable alternative, please join us at …

The Philadelphia Talend Meetup Group is dedicated to learning and exchanging Talend best practices expanding the use of Talend's open source ETL tools.

We are a group interested in  advancing and developing the the finest open-source healthcare tools  (VistA, OSCAR, OpenEHR), which are the key enablers of delivering cost-effective,  evidence-based, healthcare.

A group of users and developers that use the open source Plone CMS and/or Python frameworks. This group was established around 2008 as an open community for Penn State students, faculty and staff to collaborate on web content and projects. This group is open to anyone. We strive for a community culture that is open to all.

We want to collaborate with developers, designers, businessfolk, and innovators to build a partnership between business and the open source community for the future. Peeps are encouraged to find inspiration, confront new challenges, share their expertise, renew bonds to the community, make significant connections, and find ways to give back to tech movement.

Meet others in Philly interested in PostgreSQL: The World's Most Advanced Open Source Database. Discuss this open source database and share the tips and tricks you've learned using it.

We are DC-area technology entrepreneurs and innovators who want to build viable and vibrant business based on hardware, whether electronic, mechanical, or other. Atoms are the new bits: We believe that the time is ripe for a new wave of entrepreneurship in hardware in the United States and worldwide. Lean startup / pretotype methodologies: Thanks to inexpensive contract manufacturing, domestic and overseas, 3D printing, programmable hardware, and an Internet to propagate ideas, the principles of …

This group is a place for developers to learn more about the non-relational, open source, document-oriented database MongoDB. MongoDB is the leading NoSQL database and many people are interested in learning more about it. So if you are facing challenges with MySQL or Postgres or Oracle and want to explore a more flexible, scalable, and fun alternative, please join us at one of our monthly sessions.

Welcome to the Eucalyptus Cloud User Group! We are here to bring together developers, architects, sysadmins, devops people, enterprises, start-ups... basically anyone interested in various possibilities of private and hybrid cloud solutions. Being an Open Source IaaS cloud platform means not only open source code but also open source ideas and communication. We will organize hackathons for code and hackathons for ideas. Eucalyptus is the world's most widely deployed open source cloud computing s …

The Infinit.e User Group is a forum for Infinit.e users, prospective users, and partners to gather and discuss best practices for implementing Infinit.e, document discovery and analysis use cases and examples, Open Source software, and network. Membership in the Infinit.e User Group is open to anyone interested in the Infinit.e platform, document discovery and analysis, and Open Source software and like Hadoop, elasticsearch, and MongoDB regardless of technical proficiency.

Calling all SugarCRM users, developers and enthusiasts! SugarCRM is the world's fastest growing customer relationship management software. Let's get together, learn from one another and contribute to this open source software.

Open Source Fashion started in New York City in April 2011.  We have cultivated a community of helpful innovators, and we are going to do the same in DC! The idea of the OSF Meetup group is to bring like minded people together to openly share ideas, contacts, and expertise with each other for the benefit of the entire meetup community, and our individual projects. The continuous emergence of new technologies and products are constantly changing how businesses are being conducted.  Whether you re …

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.

The Open Web Application Security Project (OWASP) is an open-source application security project led by The OWASP Foundation, a professional association of global members that is open to anyone interested in learning more about software security. The OWASP community works to create freely-available articles, methodologies, documentation, tools, and technologies. There is no bar for entry. Whether you are interested in security, would like to hear from professionals in the industry, simply netwo …