Ruby Ireland - www.rubyireland.com
... may the code rise to meet you.
Ruby Ireland is run on mojombo's jekyll.
Once installed fork and clone the repo locally
git clone git@github.com:your_github_username/rubyireland.github.com.git
bundle install
You'll need to install nodejs on your system, eg.
sudo apt-get install node nodejs # on ubuntu
bundle exec jekyll serve
Browse to http://localhost:4000
Hurrah!