I have been looking for and cannot find an extension that would give a pop-up (like Ghostery does) letting me know if a web page I am reading, was published by one of the major mass media corporations. I am talking about:
When researching a topic, it would be good to know I’m also reading from alternative sources, just to make sure I am getting the whole picture.
This extension could be like Adblock, in the sense that people create independent lists.
This isn’t really the right place to ask for it, I’m not sure where that is though. I think a freelance programmer site may be the best place to find someone.
This add-on is the closest I know to what you’re asking for. It’s focused on one side of the media but maybe can serve as a starting point for what you need.