Pedro J. Molina has posted a very useful summary of the main features of all language workbenches (i.e. frameworks to facilitate the definition of textual and/or graphical domain-specific languages) presented at the Language Workbench Competition 2011 . Worth taking a look at!
For more information, several attendees have posted their personal summaries of the event. In this page , Pedro links to most of them.
ICREA Research Professor at Internet Interdisciplinary Institute (UOC). Leader of the SOM Research Lab focusing on the broad area of systems and software engineering. Home page.