[amoorthy]

You are correct that all sources have bias. It's difficult for readers to check every article for this and gauge their credibility. So my startup, CivikOwl, built a Chrome extension that makes it easy to check the quality of citations in an article and scores it based on this and other signals.

If you're interested check it out: http://www.civikowl.com. Feedback welcome (If you want to check out beta mobile app hit me up: arjunm at civikowl dot com)

(There's also a whole business model behind this that helps news orgs move away from reliance on ads but that's a longer discussion).