Sensorium, a Psychology Today online column fucused on synaesthesia 

Synaesthesia list – A comprehensive website curated by Dr. Sean A. Day

www.thesynesthesiatree.com

I have Synesthesia: I’m not a freak, I’m a Synesthete

Synaesthesia Facebook Groups

UK Synaesthesia Association

Synesthete Artists.

neurodivergentrebel.com

neuroclastic.com

britbrogaardlab.com

med.stanford.edu/neurodiversity

https://www.templegrandin.com/

visiblebody.com/learn/nervous/five-senses

www.psy.ox.ac.uk/team/charles-spence

Macquarie University (Australia). https://www.mq.edu.au/about/about-the-university/faculties-and-departments/medicine-and-health-sciences/departments-and-centres/department-of-cognitive-science/our-research/perception-in-action/synaesthesia-research

Max-Planck Society (Germany).  https://www.mpi.nl/departments/language-and-genetics/projects/decoding-the-genetics-of-synaesthesia