At an event organized by LinkedIn and Engine Yard on November 2, 2010, Noah Gibbs delivered a presentation on how On-Site.com is using JRuby to leverage its old Java codebase.
A few topics Noah covered include:
Check back later this week for videos on these presentations from the event:
Check out the video and slides below. And as always, you can find more educational videos on Ruby and open-source at TechTV