Most people still don't trust online info
Over the past decade, people have witnessed the rise of social networks and mobile technology that's put the Internet at an arm's reach, day and night - yet a new study has found that people are even more distrustful of the information they find online. Ref. Source 7
I'd ay about 80 percent of it is good stuff if you are looking on legit sights. I would not go to a blog for credible info because its mostly that person's opinion but I think Wikipedia is more legit because sources are quoted.
You just need to be smart about what you read even if its a known news site like CNN or Fox. If the article is written in an opinionated way then take it as that... Their opinion. If it is written as fact then they need to state how they got these facts, if they don't then be weary about the information they're giving.
Students often do not question online information. According to a new study, students struggle to critically assess information from the Internet and are often influenced by unreliable sources. In this study, students from various disciplines such as medicine and economics took part in an online test, the Critical Online Reasoning Assessment (CORA). Source 6w.
While online info may not be as credible as it should be there is some good stuff out there. However, it should always be verified. The problem of people taking info from google and other places and just running with it as though it was official info from Harvard.