Purdue OWL Online Writing Lab. APA and MLA formatting information. https://owl.english.purdue.edu/owl/
This website has a lot of great resources for social justice oriented educators. https://zinnedproject.org
I use this documentary done by PBS so compliment my lessons plans so that students can learn about the history and legacy of Latinos in the United States. http://www.pbs.org/latino-americans/en/
The biggest resource you can have as an educator is your community. Reach out, get to know the community you serve, become an advocate.
I found this book very formational as a student and it's one of my foundations as an educator.
Every educator should read this article. Stop looking at your students from a deficit perspective and start thinking about the educational debt that is owed to working class students.