The Los Angeles Developers User Group has been going for over 15 years. Originally we were the LA Visual Developers User Group, then the LA Delphi User Group, and more recently, The LA Developers User Group.
Our meetups feature the extensive participation of the members - presenters should be prepared for comments and questions throughout the meeting, and if we really like you, some friendly technical heckling as well ! Many presentations are made by members. These days we do Windows, Mac, Mobile, Cloud, Server, and various development platforms (like cloud and mobile). Every meeting starts with general news and issue discussions. This is one of the rowdier groups but also deeply technical.