It's not a conspiracy, it's what is. There is a very liberal/Democrat bias in the MSM. To deny that is to be willfully blind.
There are public methodologies used by a lot of these organizations too. You can try to discredit why those aren't accurate, but that is what you have to criticize scientifically, not the perceived bias of any news agency.
But anyway, Reuters isn't very partisan in my opinion and Rasmussen even has it at 48-48 today and I think that is generally a good source- I believe they were closest to the actual results during the last election if I remember correctly. (by the way Rasmussen often gets criticized for being biased conservativally/Republican)
Pew recently gave Romney a 4 point lead with a +- 3.4 point error and Gallup gave Obama a 3 point lead with a +-2 point error.
Fox News has a graph on their site with a poll by realclearpolitics that has Obama at 47.9 and Romney at 47.4. You aren't going to say Fox has a left wing bias too, are you?
Given the error percentages of all of these polls and the time left until elections, I'd say it is still very close and anybody's game.