I love Ramaze because it lets you write Ruby without any magic. (there be no dragons!)

  # helloworld.rb
  require 'ramaze'

  class MainController < Ramaze::Controller
    def index
      "hi world!"
    end
  end

  Ramaze.start :adapter => :thin, :port => 3000

  # ruby helloworld.rb
  # curl http://localhost:3000/ => "hi world!"

Don't even need a webcast to understand that.

Ditto.

It plays well with JRuby + Warbler, sits on Rack for pre- and post-processing goodness when needed (without having to intertwingle with stuff in the app proper), and basically gets out of your way. I don't feel like I have to learn assorted ill-documented mini-DSLs in order to just write a Ruby app that sits on the Web.

#ramaze on freenode rocks, too.

It's the most Ruby-ish of Ruby Web tools I've used.

http://github.com/zh/turl/tree/master - tinyurl-like service in ramaze (just one file). even have an API ;) Have also a bigger project - http://github.com/zh/tamanegi/tree/master - rss/atom feeds aggregator.

I've always been a advocate of Ramaze. Too bad it does not get the press it deserves.

Just finished a 3k+ controller LOC business app with ramaze, and we love it.

Just for comparison / further investigation, there's also Sinatra - http://sinatra.rubyforge.org/

It's more "DSL-y" than Ramaze.