This document provides an overview of Google Code-in (GCI) and resources on GitHub. It discusses how GitHub can be used for more than just software, including sharing data, writing, translations, and open company initiatives. It also summarizes GCI tips like choosing a project in advance, getting familiar with tools and communication practices, and practicing communicating without overly formal language. Finally, it introduces the loklak social media harvester project and some example tasks for GCI Challenge 2.