There are many hoaxes on the Internet Here are some web sites which appear to be real, but are not. There is also a page with information on checking out sites, and criteria for evaluating web sites.
Link to the recording and handout from a workshop presented by Dr. Nicole A. Cooke, Dr. Stephanie Craft, Dr. Barbara M. Jones, and Dr. Rachel M. Magee at the University of Illinois on February 1, 2017.
Jessamyn West notes that the way some libraries link to hate sites will actually help make them appear higher on results lists of search engines.
This article includes instructions for making sure your link to a hate site will not help their position in search results.