I do a lot of fighting against pseudo-science online and was introduced to a browser add on called rbutr. It automatically gives the user links to web pages which dispute the accuracy of the page the user is viewing, idea being it either helps users avoid being in an echo chamber or allows critics to quickly find counter arguments to anything posted online.

Does anyone else use it? It mainly deals with science related topics but with a user base with wider interests it can start delving into other topics, like the death penalty.