I asked Google this question earlier this week: who is using JRuby for large scale projects?  Here’s the list I got:

• Oracle Mix – built by Oracle’s AppLabs folks, it is primarily a demonstration site to show what kind of social concepts Oracle is thinking about.  Oracle Mix was used at 2008’s OpenWorld, which hosted more than 40,000 participants.
• Project Kenai – built by Sun Microsystems, Kenai is a project hosting platform similar to SourceForge and Codehaus.
• Mingle – by ThoughtWorks, an Agile project management tool.

Does anyone out there know of another I can add to this list?

Filed under: Consumer Web, Enterprise Web, Product Management