There are still tickets available for Puppet Camp New York 2015, Friday, May 15, 2015. It is a day of presentations useful for folks from beginner to advanced. I'll be one of the speakers. In my talk I'll be demoing some of the things we do at StackOverflow that make using Puppet safer: Git, CI, Vagrant, and using Puppet Environments. A lot of people at these events aren't using Puppet yet, so the material is usually very introductory.
I'll be doing a rehearsal of my talk this Thursday (May 7th) at the NJ LOPSA chapter meeting. They meet in Lawrenceville, NJ (near Princeton). For more info, visit their web site.
Hope to see you at one or both!