Online Dating Blog

I have chosen 15 news sources. Now I have to decide which top 3 new sources I am going to to use to gather news information.I am a teacher and need to keep my students informed on all topics. The news sources have to be the most factual, most intelligent, non-biased, and most well-informed news.
Again I have to keep my students informed and up-to-date on all topics and have to make sure my information is ACCURATE and FACTUAL.
(No bs, no fluff.) I need accurate news.
I know all news sources are biased to a certain degree. Some more heavily than others. But I need the least biased and most respected new source so at least I know what I am talking and not look clueless when lecturing to my highschool students.
I have chosen: PBS, NPR, CNN, FOX News, BBC, Drudge Report, NPR, Christian Science Monitor, AP, Reuters, The Economist, MSNBC, C-SPAN, New York Times, and Wall St Journal.
Im looking for online news. I just want basic, fresh, intellient, factual, up to date new coverage daily. It has to be respectable news source.
My top 3 new sources that I am considering are: REUTERS, Associated Press, and Christian Science Monitor.
What are your top 3 reliable and honest new sources? Which would you choose if you had to lecture a class on all subject areas? I need to be very well informed.
Thanks.