A couple other places to look are:
Vegan Jobs: "If you are a vegan looking for vegan work, or a vegan who owns a vegan company, you've come to the right place. We are currently listing vegan companies all over the world who are vegan owned and who provide vegan products." http://www.veganjobs.org/
Feminist jobs and internships: http://www.feminist.org/911/jobs/joblisting.asp
And, Amherst College has some info on finding activism-focused jobs with links to more job sites: https://www.amherst.edu/campuslife/careers/students/picareers/careers/social_activism