Reveal the Danger
Teaching info lit at community colleges for 15 years, we found that revealing dangerous sites, e.g. Martin Luther King hate sites, catch the attention of some. For every LibGuide we did, we listed credible sites and a path to take.
But equally, maybe even more importantly, we had to convince the faculty members, most of whom were adjuncts, to pay attention to sites used. The bibliography is of equal importance to the paper. Unless they grade based on quality of sources, all our teaching is for naught.