Very cool website! However, I am not sure if ad fontes media is a good source of media bias ratings. Their methodology doesn't even name all the dimensions used

Very cool website! However, I am not sure if ad fontes media is a good source of media bias ratings. Their methodology doesn't even name all the dimensions used to rate sources and their "training manual" provides very little useful guidance (https://www.adfontesmedia.com/how-ad-fontes-ranks-news-sources/ https://www.adfontesmedia.com/how-ad-fontes-ranks-news-sourc...). It doesn't seem like they are doing any inter-rater reliability testing. I don't find any peer-reviewed journal articles using the rating either. Maybe you could check out https://guides.lib.umich.edu/c.php?g=637508&p=4462444 https://guides.lib.umich.edu/c.php?g=637508&p=4462444 instead.