You have to understand that everything has some level of bias.
The information should come from multiple sources. I emphasize that word because you shouldn't be gathering information primarily from opinion sources like prime time talking heads, blogs, or aggregators.
Those outlets are where mass distortions start coming into play. Instead, get information from primary originators of news - actual journalists, instead of bloggers who write wildly biased and incorrectly summaries of real news from real newspapers.