Adding a staging environment to your Jekyll blog, with Wercker
Here I've written a related post on how I automated the delivery to Amazon S3: http://born2code.net/blog/2013/05/27/simplify-your-jekyll-pu...
the wercker blog also has a post on how to set up a delivery pipeline with Middleman:
http://blog.wercker.com/2013/06/10/Streamlining-Middleman-De...