https://events.openhatch.org/events/6
On Saturday, March 21st, OpenHatch is running an event introducing Swarthmore students to free and open source software. They looking for volunteers who are interested in helping out! The event runs from 10am-5pm, with lunch provided. You can find out more about the event series here: http://campus.openhatch.org/.
You can also connect in IRC on freenode #openhatch
They are looking for people to help mentor attendees as they learn how to contribute to open source projects. Instructors with a variety of backgrounds are welcome: while it's great if you have tons of experience using git and setting up development environments, they are also looking for people who've been involved with open source as non-programmers, who know a bit about picking bugs and submitting patches, or who just like to talk about their experiences with open source. If any of this sounds appealing to you, and you're available on the 21st, you can sign up here: https://events.openhatch.org/. Also, feel free to introduce yourself in our mentor forum here: http://discourse.openhatch.org/t/swarthmore-openhatch-mentor-introductio....
Note that cilefen and I recently participated in one of these events at Princeton University, so we can share the Drupal-related materials we made with anyone else who's interested.