Carl Lerche on Rails 3 and Arel
Carl Lerche talks about the changes, design and new features in Rails 3. Also: the concepts and reasons behind Arel, the Rails 3 relational algebra library.
Carl Lerche talks about the changes, design and new features in Rails 3. Also: the concepts and reasons behind Arel, the Rails 3 relational algebra library.
With a recent announcement from Nick Quaranto, RubyGems.org has become the default gem source for RubyGems. The three domains gemcutter.org, gems.rubyforge.org, and rubygems.org now all point to the same place, and gem serving and installation work for all three. RubyGems.org is the main web front end, to which the other two sites redirect. The secure site, https://rubygems.org, is also now live.
JRuby's Charles Nutter is making Maven artifacts installable as RubyGems. An alternative to using Maven is JavaGems, built on RubyGems, Bundler and Gemcutter to make it easier to install libraries for Scala, Clojure and other JVM languages. Also, JRuby gets the ability to generate real Java classes.

IronRuby is Microsoft's implementation of the Ruby language we all know and love with the added bonus of interoperability with the .NET framework. It's supported by the .NET Common Language Runtime as well as, albeit unofficially, the Mono project. This article gives an introduction to IronRuby, and discusses how to run Rails applications in IronRuby as well as potential issues to look out for.

Google Charts is a web service for generating charts. Matthew Bass explains the basics of the Google Charts interface and the gchartrb library which makes it even easier to create the charts from Ruby code.

Yehuda Katz explains Rails 3: the performance improvements, the new architecture, the influence of Merb, and much more. Also: a look at the Bundler tool.

In this talk recorded at FutureRuby, Dr Nic explains how to how to go from 1 to 1000 open source projects and still enjoy yourself.
Aaron Quint talks about his projects Sammy, a Javascript port of Sinatra, and Jim, a Javascript packaging tool, as well as the state of Javascript, jQuery, Node.js, CommonJS, and much more.

Oren Teich and Blake Mizerany talk about the technology behind Heroku and the benefits of the new add-on system.