The credibility and content criteria are defined by GACVS. As a result, the reliability and standards set by WHO's GACVS and available at VSN has been created to help people judge the quality of the website information they read. In the year of its creation, the VSN approved 23 websites as members in languages including English, French, Dutch, Italian, German and Spanish. In March 2009, the VSN listed a total of 29 websites that had been approved as containing "sound and credible" vaccine safety information. As of 2021 the initiative has 98 member sites in 42 countries and 36 languages. Recommendations of good practice for vaccine websites are published by the WHO's GACVS. Some member sites refer to their inclusion in the VSN list as a kind of quality certification. Members Websites are included to the VSN list following evaluation of their credibility, accessibility, content and design. As listed on the official website, there are currently 99 members which include: American Academy of Pediatrics Centers for Disease Control and Prevention Vaccine Education Center Robert Koch Institute HPV Prevention and Control Board National Foundation for Infectious Diseases Immunize Canada NHS Inform Government of Canada I Boost Immunity Kids Boost Immunity Ministry of Health (Argentina) Paul-Ehrlich-Institut Ghana Food and Drugs Authority Public Health Agency of Canada Public Health Agency of Sweden Regional Assembly of Murcia Vaccine Knowledge Project Vaccinate Your Family Vaccine Confidence Project Health Feedback Evaluation In 2008 a peer-reviewed study of 26 websites included in the VSN list by April 2007 noted "the transparency of financing, the lack of links to the pharmaceutical industry, the transparency of site management and responsibility and the proven scientific quality and constant updating of contents" of its assessed resources, unlike websites critical of vaccination. 84.6% of sites recorded contact details, 73.1% noted which data protection procedure they used and that the data would not be sold or forwarded to third parties. Most sites used English. About one in five provided contact details of vaccination centres and 63.6% of sites were targeted at the general public and health care professionals. 84.6% of sites were quoted as having information on side effects. In 2017 the VSN's Web Analytics Project (VSN-WAP) was launched to evaluate the behaviour of people using websites listed at VSN. Media Misinformation about vaccines is a concern for the VSN, especially on social media. In 2019, the social media platform Pinterest partnered with