Project sources


 * Curated lists (more useful):
 * Google Summer of Code mentoring projects
 * A few of the projects OpenHatch mentors have helped with before: WelcomeBot, OpenStreetMap, Oppia (source, contribution guide, getting started, tasks for new contributors).

You can also do a web search for “[topic] open source” or “[topic] free software” and see what turns up.
 * Large lists/databases (less useful):
 * OpenHatch project database
 * Free software directory
 * Wikipedia's list of FOSS projects
 * Ohloh open source directory
 * explore github
 * A directory of open source directories