Why companies should open-source code: force multiplier, attract talent, included technical screening, effortless modularization, ...

Jenkins/Hudson allows triggering a build with just a URL. This post explains how to set it up in GitHub (and similar instructions work for BitBucket) even if your Jenkins requires authentication.

Tutorial on how to migrate a website into github pages---github requires your website on a special branch, so here's a pointer to some magic that takes a directory, turns it into a special branch, and then "mounts" it as a submodule.