AllSides provides multiple different views of the same story which allows for a much rounder picture of the subject. Instead of just news from the right or left, AllSides covers every side, including the middle.
Media Bias/Fact Check is an independent website that educates the public on bias in the media. Although this is a crowd-sourced operation run mostly by volunteers, you can find valuable links to good news sources.
Open Secrets is a nonpartisan, independent and nonprofit, run by the Center for Responsive Politics. The group focuses on reporting political donations.