Damian Conway explains where Perl 5.x is used today and why (hint: the CPAN library repository), and what Perl 6 offers: modern OOP, an optional type system, libraries for parallelism and concurrency, and very powerful built-in tools for parsing including extensible grammars.
Markus Völter explains the concepts of the MPS Language Workbench, how it enabled the mbeddr project, approaches to DSLs and how to combine them, programs vs models, formal verification, and more.
Vaclav Pech and Alexander Shatalin explain creating DSLs with Jetbrains MPS, the projectional editor, language extensions and much more.
Rich Hickey explains Clojure 1.4's extensible Reader, which allows to provide custom notation for data without the problems of Reader macros. Also: ClojureScript, Clojure in Clojure, and Avout.
In this interview done by InfoQ's Srini Penchikala, Oleg Zhurakousky talks about the cloud architectures with messaging as the core part of the cloud solutions. He also discusses the Spring Integration and other Spring projects like Spring Roo and Cloud Foundry.
Debasish Gosh talks about Domain Specific Languages: how to build DSLs with Scala or XText, real world DSLs, parser combinators and monads. Also: how Akka brings actor-based programming to the JVM.
Martin Fowler and Paulo Caroli discuss testing, continuous integration and continuous deployment, as well as DSLs and REST.
In this interview from QCon San Francisco 2009, Don Box discusses the history of SOAP, XML, XML Schema, RELAX NG, SOAP and WSDL, REPL, opinions on REST, REST at Microsoft, coexistence of REST and WS-*, the M programming language, M and DSLs, M versus XML/XML Schema, Data as XML, and future plans for M and data modeling at Microsoft.
Business users doing programming? In this interview, Charles Simonyi presents a radical new way of building software that separates business knowledge from software engineering knowledge. The claim is to simplify the creation process for software as business experts directly contribute using their customary domain description which results in accelerated innovation.