I have seen forums, blogs, and wikis that try to do some of this but there are problems with these efforts. They tend to be one sided or nothing more than arguments. This would be an insult to our intelligence and commonality. The question here would be if you want the truth or a perception of the truth? Perspective is important but too narrow of a perspective and you can miss even the most obvious of things. Too wide of a perspective and even the greatest of things can be overlooked as being insignificant.
There would be several interdependent areas that have to be looked at in such a way as to gain the most correct information.