Ruby Rocks
It was almost a year ago when I started learning and using Ruby. I always feel that the thing that really differntiates between developers is in the knowledge of knowing some scripting language. I personally have worked on Python, Bash & Ruby scripting but I never had an opportunity of using these scripts on a day to day basis. I really like the way ruby works its simple yet powerful. I have been working on more ruby stuff recently with my new team. Hopefully I can find more uses cases to utilize the rails app too.
I have one of my websites running on rails http://semaphoresolutionsinc.com which I think is pretty neat. IDEA 7 has cool integration with ruby which happens to be my IDE of choice for other development. Too bad it is a licensed version but I guess its worth every penny :-)
If you wish to learn ruby you can use this http://tryruby.hobix.com/ to run ruby commands on the browser without installing anything on your machine