The third edition of The GitHub Reflog highlights various notable activities and projects within the GitHub community, including the migration of Apple's MacRuby project to GitHub and the creation of official GitHub mirrors by the Eclipse Foundation and the Glasgow Haskell Compiler. Featured projects include divegeek/uscode, which offers an up-to-date, plaintext version of the United States Code for version control, and scoates/owty, a unique project for comparing beer recipes using GitHub's image compare views. Additional remarkable repositories include dotcloud/cloudlets for creating universal server images, josevalim/elixir for a functional language runtime on Erlang, ilektrojohn/creepy for displaying personal data locations, jordansissel/fpm for simplifying package management, and javisantana/whitebrd.me, a promising web app for real-time collaborative sketching. Other interesting projects are atomicobject/objection, a lightweight dependency injection framework for ObjectiveC applications, and mikeal/spider, a programmatic web spider powered by jQuery. The edition encourages community engagement and contributions to these emerging projects.