• https://www.challenge22.com/challenge22/
• http://www.veganawareness.org/humane_myth0.aspx
• https://www.wpri.com/rhode-show/food-drink/learning-more-about-the-vegan-lifestyle/1593295983
• http://www.facebook.com/group.php?gid=59488299078&ref=ts
• https://www.newleafvegans.org/
• http://www.veganawareness.org/ditch_dairy_.aspx
• http://www.CharityAdvantage.com