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IronRuby is an open source Ruby implementation being developed at Microsoft with the .NET CLR in mind. It's reasonably mature and as well being a regular implementation, it provides the ability to use Ruby directly within the Web browser through Microsoft's Silverlight Flash-esque framework. Windows seems to get a bad rap in the Ruby community so we thought we'd turn the spotlight on some of the cool things IronRuby's doing nowadays.

Serialization is the process of taking an object (such as a string, hash, or even something of your own creation) and turning it into a single time of data that can be transmitted down a network connection, stored in a file, or similar. Protocols like JSON, YAML, and XML are commonly used for this purpose, but for the highest efficiency, binary protocols are an alternative. One option available to all Ruby developers (as it's in the standard library) is the Marshal library but this protocol isn't cross-language friendly (or even between some Ruby versions).

RubyFlow is Ruby Inside's community driven sister site where you can post cool Ruby links you want to share (even of your own stuff). With 20–80 posts each week, there's too much to cover on Ruby Inside, but I want to provide a regular roundup of the "best of" RubyFlow. This instalment covers early March — enjoy!

EventMachine is a simple(ish), fast, event-driven I/O library for Ruby. Its goal is to provide highly scalable I/O performance with an easy-to-use API wrapped around the nastiest parts of the process (since typical Ruby coding practices aren't particularly event-driven friendly). Aman Gupta has put together an awesome 114-page deck of slides (also available as a PDF) that walks through EventMachine with lots of practical code examples.

Want to develop a Mac OS X app without getting waist deep in Objective C? MacRuby is the answer, and it’s now mature enough to use directly from XCode to build fully-featured Ruby-powered Mac apps. “Jean Pierre Hernandez” of Phusion presents a walkthrough of how to do it, step by step.

Ruby User Groups (RUGs, for short) are typically informal organizations put together to encourage Ruby developers with certain areas to get together, share ideas, and, often, to have some fun. If you're lacking for inspiration or want to get to know some Rubyists within certain parts of the world (or just around the corner, if you're lucky), heading to a Ruby User Groups' meeting can open a lot of doors. But how can you find them?