Sebastian Erdweg introduces SugarJ, a Java-based extensible programming framework which extends Java with closures.
Ward Cunningham keynotes on how Events, Sockets, CORS, Closures, SVG, DSLs, Canvas, EC2 and Raspberry Pi contribute to a new type of wiki, a federated one.
Creighton Kirkendall introduces Google Closure Tools and the challenges writing a ClojureScript library.
Brendan Ribera introduces Mirah, a JVM-based programming language with a Ruby-like syntax, type inference, closures, meta-programming, macros, showing how to use it for Android development.
In this presentation from the JVM Languages Summit 2008, Neal Gafter discusses closures on the JVM. Topics covered include the JVM libraries, the challenges of running other languages on the JVM, language-specific wrapper/shim libraries, ways of making the JVM more language-friendly, whether lambda expressions are too hard, the history of closures, and forking the JVM to support closures.