Determining "good" information from "bad" can get tricky sometimes. One way to decide what's what is to ask a librarian for help, or you can use SIFT, a set of 4 'moves'.
SIFT stands for Stop. Investigate the source. Find better or other sources. Trace back to the original source to see quotes in their original context.
The idea of SIFT comes from Mike Caulfield and is reused here under a Creative Commons license.