Dutch Django sprint 2015 Meetup page - http://www.meetup.com/dutch-django-assocation/events/220368460/
Django on GitHub - https://github.com/django/django
All open tickets - https://code.djangoproject.com/query?status=!closed
Open "easy pickings" tickets - https://code.djangoproject.com/query?status=!closed&easy=1
Preparing for the sprint - https://code.djangoproject.com/wiki/Sprints#Preparingforthesprint
What to work on during a spring - https://code.djangoproject.com/wiki/SprintIdeas
Contributing to Django - https://docs.djangoproject.com/en/1.7/internals/contributing/
Development dashboard - https://dashboard.djangoproject.com/
Django Code of Conduct - https://www.djangoproject.com/conduct/
How to make a pull request - https://docs.djangoproject.com/en/1.7/internals/contributing/writing-code/working-with-git/