Mumia Ali, aka "Obsidian" is a Men's Issues blogger from Philadelphia who focuses on Sexual Politics, Class, and Race, from the male perspective. He is a cofounder of the Men's Issues blog collective known as Just Four Guys.
- Website: obsidianraw.bravejournal.com
- Quick Hit: Don't Let The Dime Piece Be The Enemy Of The Plain Jane, September 11, 2013
- Blog: justfourguys.com
- A Voice for Men:
- Return of Kings: (About Mumia Ali)
- 5 Reasons Why Black Feminism Is A Failure, April 27, 2015