This is a website which is mainly for a PDF version of a book published in the mid 80s called "Shyness & Love. causes, consequences and treatments." Written by Dr Brian Gilmartin after an in depth study of about 200 shy and non shy men.
The book is out of print, but the author gave his permission for it to be released as a PDF file by some shy people on the internet. It's free to download. It's a long book, but very in depth and you shy guys may just see yourself in this book. By the way it's strong on everything apart from the treatments, but is worth reading for the information on possible root causes of "love shyness".
The address is www.love-shy.com/ and you can just click on the title of the book and follow the link if you wish to download it.