I don't have a website. There are books that I've seen. Google. "Needle felting"
I just randomly grabbed ths video
I do not use a gizmo of any kind and do all the work with a single needle . I form the body out of quilt batting , well, stuffed toy batting, really, then cover with wool roving. The died stuff is expensive. And, the needle is very sharp. You will draw blood many times. Careful not to stain your creature with it!