Hi Alkaenn,
You could try the book 'Fear is no longer my reality' by Jamie Blythe. His main problem is actually panic disorder, but there is definitely some stuff in there I could relate to. Also, books about social anxiety usually have case studies that you might be interested in.
I have heard that the movies 'Punch drunk love' and 'Little voice' have socially phobic people in them, but I haven't seen either so I can't say how helpful they are.
Hope this helps!