Basecamp and Ruby on Rails.

While surfing, I came across Rails - a framework to write web applications in Ruby.
The first application was Basecamp - a web based project management software.
I applied to Basecamp and created my project site. http://dmahajan.projectpath.com/login/

Ruby is creating a niche for itself. Rails (http://www.rubyonrails.org/) is touted as the framework to launch Ruby.

Another interesting link is Martin Fowler's site on Enterprise Software.
http://martinfowler.com/articles.html