In their editorial, Brown and Sevdalis 1 discuss the recent finding by Betsch and colleagues that lay narratives from the Internet reporting vaccine adverse events bias risk judgments despite concurrently presented, more reliable statistical information. The authors assert that this narrative bias need not raise concern regarding real-life vaccination decisions because parents are not likely to consult the Internet for health information as long as they are satisfied with the information they receive from official sources. We agree with this notion but would like to offer a differing conclusion, with markedly different implications regarding the appropriate level of concern about lay narratives on the Internet. Although in surveys many parents name their health care providers as the most common source of health information, focus groups and in-depth interviews reveal that parents often feel underinformed and indeed lack relevant vaccination knowledge. In such situations, they frequently prefer to turn to the Internet rather than to their health care providers for more information. Qualitative studies reveal thatwith regard to vaccination information, parents tend to distrust official government statements as well as their doctors, whom they view to be unduly influenced by the authorities. When directly asked for trusted sources of information, very few parents actually name the Internet (4%). However, it does provide one type of information that they seem to unanimously view as trustworthy: the experiences of other parents, often expressed in vivid narratives. Parents are seen to have no agenda and no reason to fabricate information. In sum, the literature suggests that parents do consult the Internet for vaccination information, especially when they are unsatisfied with the information at hand and uncertain about their decisions, which is often found to be the case. The Internet provides easy access to a large number of narrative reports about vaccine adverse events, authored by other parents. Accordingly, although we agree with Brown and Sevdalis about the conditions that would lead lay vaccinationnarratives on theWeb to be a serious cause for concern, we believe those very conditions are prevalent.